We already knew that Wanda Maximoff would be a major part of Doctor Strange in the Multiverse of Madness, the film currently in production that is set to debut in March of next year.
While we certainly don’t have any details on how that will work or what it all means, it all continues to build this film as potentially a huge event for the MCU.
In addition to the events of WandaVision being important, we have the Loki series dealing with multiple timelines, and rumors that the new Spider-Man: No Way Home could also deal with multiverse concepts, meaning that a lot could be coming to a head in that movie.