If you were confused by Wanda's (Elizabeth Olsen) sudden change from hero to villain in Doctor Strange and the Multiverse of Madness, WandaVision offers some explanation.While Marvel fans have known Elizabeth Olsen's character as the Scarlet Witch since her first appearance in Avengers: Age of Ultron in 2015, inside the universe of the franchise, she has never been called by that name. Instead, she is simply known as Wanda Maximoff and her powers are explained as being a result of the Mind Stone, one of the infinity stones.However, in the eighth episode of WandaVision, villain Agatha Harkness (Kathryn Hahn) forces Wanda to explore the past she has tried to forget and realize she is a witch rather than the product of an infinity stone experiment.Wanda has actually been using chaos magic all her life and this magic was amplified by the stone. Agatha also says that there is a prophecy about Wanda in the dark magic book the Darkhold, which we learn more about in Multiverse of Madness. This prophecy gives Wanda her true name, the Scarlet Witch.In the post-credits scene of the season finale, Wanda is seen reading the book, which likely corrupted her to the dark side.WandaVision also explains Wanda's mission in Doctor Strange and the Multiverse of Madness to find her kids in another universe.In the show, she recreates a town in her own image using her chaos magic and even creates beings such as Vision (Paul Bettany) and their two children, Tommy (Jett Klyne) and Billy (Julian Hilliard).However, Wanda accidentally bound them to her recreated Westview town. Because a spell cannot be changed, in order to break the spell for everyone else, she had to sacrifice her husband (again) and two kids.In the post-credits scene of the season finale, Wanda hears Tommy and Billy's voices while reading the Darkhold, which is how she finds out that they exist in other worlds.While Wanda sacrifices her recreated Vision at the end of WandaVision, there is still a form of Vision out there. It is revealed in episode five that SWORD, a secret espionage unit, had taken Vision's android body after he was killed by Thanos in Avengers: Infinity War and had started doing experiments to rebuild him. In the season finale, this new white Vision was fully operational and was sent to kill Wanda and her family.However, after a discussion with Wanda's recreated Vision and after receiving his memories, the White Vision fled the scene. This Vision is still out there in the Marvel Cinematic Universe and is likely to return in future projects.The series also introduces Spectrum, who will be relevant to The Marvels film, which premieres later this year.Spectrum is the hero name for Monica Rambeau (Teyonah Parris), the daughter of Captain Marvel's (Brie Larson) best friend Maria Rambeau (Lashana Lynch).Since we last saw Monica in Captain Marvel, she's grown into an adult. However, WandaVision episode four explains that Monica temporarily died after Thanos wiped out half of the universe in Avengers: Infinity War.She returned, of course, with the rest of the people resurrected after the Blip. However, during that time her mother, Maria, died of cancer.In WandaVision, Monica returns to her job with SWORD and accidentally gets sucked into Wanda's recreated world in Westview. After being thrown out of the world by Wanda in episode three, she forces her way back in episode seven and is given powers in the process.While we do not get to see her full range of abilities, Monica will return in The Marvels, alongside Captain Marvel and Ms. Marvel (Iman Vellani), where we may see her more in action.In the mid-credits scene in the WandaVision season finale, Monica is last seen speaking to a Skrull, who teases that the new hero is about to go to space, which is probably how she comes into contact with Captain Marvel.Moving on to Falcon and the Winter Soldier, the 2021 miniseries also focused on a character discovering their identity.At the beginning of the series, Sam Wilson (Anthony Mackie) rejects Captain America's shield, given to him at the end of Avengers: Endgame. However, he finally takes on the mantle and the shield at the end of the series.Wilson will return as Captain America in Captain America: New World Order, which premieres in 2024.Wilson will also return with his own Falcon sidekick, who was introduced in the miniseries. Joaquin Torres (Danny Ramirez) appeared as an ally of Wilson throughout the show and it was announced during D23 that he will take on the mantle of the Falcon in the upcoming sequel.The main plot of Falcon and the Winter Soldier revolved around the creation of new super-soldiers like Bucky and the original Captain America (Chris Evans). The first group of new super-soldiers is the Flag Smashers, a rebel group trying to fight for the refugees being moved out of their homes in Europe. This group received their abilities from a new serum that they stole from the series' mystery villain, the Power Broker. Unfortunately, all members of this group are killed or arrested by the end of the series so will probably not make another appearance.The second super-soldier is introduced in episode two: Isaiah Bradley (Carl Lumbly). During the 1950s, the government tested the super-serum on African-Americans without their permission and sent them to fight in the Korean War. Bradley was the only one to survive but was imprisoned and experimented on for 30 years. Bradley is set to return in the next Captain America film. It's also worth noting that Isaiah's grandson Elijah (Elijah Richardson), who appears in the show, is a superhero in the comics and could take up the mantle of the Patriot in future MCU appearances.The final super-soldier introduced in Falcon and the Winter Soldier is the series' main antagonist.After Sam returns Captain America's shield in episode one, the government appoints decorated soldier John Walker (Wyatt Russell) to be the new Captain America. Unfortunately, Walker fails to live up to the name. To make up for it, Walker steals and uses one of the Flag Smashers' super-serum in episode four.This backfires since the serum enhances his rage and Walker ends up killing one of the Flag Smashers in public in broad daylight. Walker does have a redemption moment in the finale but not before he loses his title as Captain America.This is when he is recruited by Valentina Fontaine (Julia Louis-Dreyfus), who appeared in both Black Widow and Black Panther: Wakanda Forever as a mysterious government agent.It is unclear at the end of the season what she hires him for, but it is likely to do with the Thunderbolts team, which Walker will appear in with a new superhero title, US Agent.While Falcon and the Winter Soldier were in Madripoor in episode three, they learned that a mysterious criminal known as the Power Broker has risen to the top of the black market during the Blip.The season finale post-credits scene reveals Sharon Carter is the Power Broker, deciding to work with criminals after being made a fugitive in Captain America: Civil War for helping Steve Rogers.This revelation means that Sharon could become an antagonist in future Marvel movies.Loki season one features the return of the MCU's greatest villain, mainly because he's the only villain to cheat death two times. Technically, the main Loki (Tom Hiddleston) we followed in the MCU so far died in Avengers: Infinity War.In the series, we are following the Loki that stole the tesseract during the time-heist in Avengers: Endgame.This Loki is tracked down by the TVA, a time police force, and sent to track down a female Loki (Sophia Di Martino) if he wants to cheat death again.After realizing that the TVA is full of lies, Loki and a female Loki who goes by Sylvie finally track down the real person behind the organization in the season finale of Loki.What they find is a man called He Who Remains (Jonathan Majors), a powerful being who explains what has been happening with the multiverse. He claimed that the reason the TVA was set up was to stop a multiversal war between different timelines.Every time there is a breach from the linear timeline, it forms a parallel timeline. Eventually, people like He Who Remains fight across these timelines to conquer them all. Sick of the fighting, He Who Remains destroyed all the other timelines and sent the TVA to stop people from forming new timelines.However, fans who have seen Doctor Strange and the Multiverse of Madness or Spider-Man: No Way Home know that He Who Remains' mission failed.Sylvie, who has been on a mission to destroy the TVA for ruining her life, kills He Who Remains, thus allowing new timelines to form.If you are wondering how this links to Kang, He Who Remains is just one version of the time villain who makes his next appearance in Ant-Man and the Wasp: Quantumania.Kang's warning at the end of Loki teases what is to come — a multiversal war in which our heroes will have to fight numerous versions of Kang across various timelines.Most of the plot points in Hawkeye will not majorly affect the Marvel Cinematic Universe. However, if the archer hero returns in a future film, one thing fans should note is that he is now partially deaf.Hawkeye shows that the years of being a superhero have taken a toll on Clint Barton's (Jeremy Renner) body and he now uses hearing aids.Hawkeye does introduce a number of characters that will become important to the future of the MCU.Firstly there's Hawkeye's new protege, Kate Bishop (Hailee Steinfeld). Inspired by Hawkeye, she tries to become a hero in the miniseries and instead gets caught up in all sorts of criminal activity. Kate discovers that her mother has been working for a crime boss and gets her arrested in the finale. It is likely that Kate will stick around and team with Hawkeye in future appearances.Then there's Echo, a deaf martial artist who spends most of the series trying to track down Ronin, Hawkeye's assassin identity in Avengers: Endgame, because he killed her father. In episode five, she discovers that her closest friend Kazi (Fra Fee) and her crime boss (Vincent D'Onofrio) sent Ronin to kill her father. In the finale, she kills Kazi and seemingly kills her boss.Echo is set to get her own solo Marvel series and may be important when other street-level heroes get their own movies.Finally, there's Echo's boss, the Kingpin. D'Onofrio, who first portrayed Wilson Fisk in Netflix's Daredevil series, reprises the role in the Marvel Cinematic Universe for the first time. Since he is introduced at the end of Hawkeye episode five, it is difficult to tell if he's the same Kingpin from the Daredevil series.In the finale, he ends up being shot by Echo and it is left unclear if he survives. However, D'Onofrio is set to return in both the new Disney+ Daredevil series and the Echo series, which means he likely survived the encounter.If you stayed until the end of Black Widow, you saw the post-credits scene in which Valentina Fontaine tells Black Widow's sister Yelena (Florence Pugh) that the former spy was killed by Hawkeye.Hawkeye explains why the Avengers have never met Yelena, and shows her discovering how Black Widow really died.Episode five goes back to 2018 when Yelena is still on the hunt to free brainwashed Black Widow spies, an elite group of spies introduced in Black Widow. After rescuing one such spy, Yelena dies in the Snap, and doesn't return until 2023 after her sister Natasha Romanoff (Scarlett Johanson) sacrificed herself in Avengers: Endgame.Yelena doesn't know the truth and feels like she missed out on years of getting to know her sister. In the present day, Yelena is hunting Hawkeye and in the process befriends his protege Kate Bishop. In the finale, she and Hawkeye have their final showdown but when Hawkeye tells her the truth, she spares his life.It may become important that she's making up for lost time when Yelena makes an appearance in the Thunderbolts movie, especially since her father, Red Guardian (David Harbour), is also in the film.The next Marvel series Moon Knight is completely self-contained and doesn't have many links to the wider Marvel Cinematic Universe. So, if you haven't watched the series, all you need to know is that it introduces two new heroes.First is the titular character, a man with dissociative identity disorder, which means he has at least two individual identities or personality states that can manifest through his behavior. The main alters that we meet are Steven Grant and Marc Spector (both played by Oscar Isaac), who are forced to become ruthless vigilantes at the behest of the Egyptian god, Khonshu, after being resurrected by him.At the end of the series, they make a deal to get Khonshu out of their lives, but they are unaware that a third alter is still involved with the moon god. It is unclear whether Moon Knight will appear in future stories, but if he does, he is likely to fight alongside street-level heroes like in the comics.The second hero is Scarlet Scarab, also known as Layla El-Faouly (May Calamawy). She is a former lover of Marc, who helps him and his alter Steven on their journey to stop villain Arthur Harrow (Ethan Hawke). In the finale, she gives her body to the Egyptian goddess Taweret to help Moon Knight in the final battle and is gifted with wings and a sword.It is unclear if she got to keep her abilities but it may come in handy if she sticks with Marc and Steven.Ms. Marvel is another series that doesn't have major consequences to the rest of the MCU – yet.The series introduces Kamala Khan (Iman Vellani) before her appearance in the upcoming movie The Marvels, which premieres later this year.Kamala was an ordinary teenage girl until she put on a pair of special bangles belonging to her great-grandmother Aisha (Mehwish Hayat) which unlock her genetic abilities, using extra-dimensional energy to create constructs.In the series, she discovers that Aisha came from another dimension called Noor, and the bangles appear to be items from that dimension. After discovering the truth, Kamala tries to stop other people from that dimension, called the Clandestines, from using the bangles to return home at the cost of destroying Earth.The finale also hints that Kamala may also be a mutant, although that's yet to be confirmed. This could be a big change linking the hero to the mutants rather than the Inhumans as in the comics. The post-credits scene of the Ms. Marvel finale also sets up The Marvels.In the scene, Kamala is in her room when she notices her bangles flashing. She is then teleported somewhere and switches places with her hero, Captain Marvel (Brie Larson). In The Marvels, we will learn where Kamala went and probably why she and Captain Marvel switched places.She-Hulk: Attorney At Law also introduces a new character to the MCU canon.After being attacked while on holiday with her cousin Bruce Banner (Mark Ruffalo), Jennifer Walters (Tatianna Maslany) is corrupted by his blood and also becomes a Hulk-like figure.However, she rejects her new abilities and lifestyle because she wants to continue to be a lawyer. Across the series, she learns to accept her new life and her superhero name, She-Hulk.While the Abomination and the Hulk are not the main characters, both have important storylines in the series.Abomination was last seen fighting Sorcerer Supreme Wong (Benedict Wong) in Shang-Chi and the Legend of the Ten Rings.She-Hulk episode two explains that Wong broke Abomination out of prison to train with him but returned him afterward. She-Hulk successfully wins Abomination's parole case, allowing him freedom as long as he doesn't use his abilities.However, Abomination breaks this simple rule and is imprisoned in the finale. This time, he allows Wong to break him out to live in the sorcerer training ground Kamar-Taj. This means he could help the sorcerers in future Doctor Strange movies.As for the Hulk, after training his cousin, he left to go track down the people who tried to kill him in episode one. In the finale, he comes back from his journey and reveals that he has a son called Skaar. Hopefully, future Marvel movies explain how and where Skaar came from.Daredevil (Charlie Cox) makes an appearance in two episodes of She-Hulk, using a new superhero suit. He also ends up dating She-Hulk, which could mean more team-ups, in court and outside of it, between the pair in future movies and shows.While Werewolf By Night is a Disney+ special, rather than a series, many MCU fans may have missed it when it premiered on the platform.The 53-minute special introduces Jack Russell (Gael García Bernal), a werewolf who is trying to save his friend Ted Sallis, a human-turned-creature known as Man-Thing.Jack can turn into a werewolf, hence the name Werewolf by Night. Meanwhile, Man-Thing can secrete acid to burn people.On his journey, Jack also meets another hero who may return in the future, Elsa Bloodstone (Laura Donelly). Elsa is a monster hunter but befriends Jack because she wants to reclaim her family heirloom of the bloodstone, which gifts its user immortality and other abilities.These three heroes could also return in future Marvel projects.In The Guardians of the Galaxy Holiday Special, we learn one important detail about Peter Quill's (Chris Pratt) and Mantis' (Pom Klementieff) heritage.In Guardians of the Galaxy Vol. 2, Peter learns that his father is Ego, a celestial planet that wanted to kill all life.The Holiday Special reveals that Mantis, who was Ego's servant in Guardians 2, was also a child of the planet. This means that Peter and Mantis are half-siblings. Mantis reveals this to Peter in the Holiday Special, thus deepening their relationship.This information may come in handy in the upcoming movie Guardians of the Galaxy Vol. 3.