WandaVision sees Wanda Maximoff (Elizabeth Olsen) recovering from the events of Infinity War and Endgame, where she saw her lover Vision (Paul Bettany) slain. Wanda's exponentially growing powers apparently see her creating her own world where Vision still lives. An adult Monica Rambeau (Teyonah Parris), who previously appeared as a child in Captain Marvel, will play a major role alongside Darcy Lewis (Kat Dennings) from the Thor movies and FBI agent Jimmy Woo (Randall Park) from the Ant-Man movies. The film is both a stand-alone and will also set up the events of Doctor Strange and the Multiverse of Madness (expected for release in 2021). The film is also expected to see Wanda claim the mantle of the Scarlet Witch, a title so far unmentioned in the film series.
Loki sees the return of the Asgardian supervillain of the same name (Tom Hiddleston). This version of the character was created from a new timeline in Avengers: Endgame and thus has not gone through the redemption arc seen in films such as Thor: The Dark World, Thor: Ragnarok and Avengers: Infinity War. The footage suggests that Loki has been imprisoned by the TVA (Time Variance Authority), an organisation that protects the integrity of the timeline and tries to limit the damage done by reckless time travel.
The Falcon and the Winter Soldier and WandaVision will both air in late 2020, Loki is expected to air in early 2021.