Disney+ recently adjusted the prerequisite viewing list for Avengers: Doomsday, adding Vision Quest, which was previously omitted. This change has sparked speculation about the potential appearances of Vision, Billy Maximoff, and Tommy Maximoff, though none of these characters have been officially confirmed yet.
The post-credits scene of the Vision Quest finale confirmed that Wanda is still alive and is now with Doctor Doom, establishing a possible connection to the main film storyline. However, this adjustment to the viewing list may simply be intended to bring viewers up to speed on Wanda’s current status and does not necessarily mean other characters from the series will appear.
Sam Wilson/Captain America actor Anthony Mackie’s previous remarks have also drawn attention, as he seemed to mention seeing Vision actor Paul Bettany on the set of Avengers: Doomsday. In light of changes to the viewing list, ComicBook.com speculates that the Maximoff family may reunite in the film, linking this to the comic storyline where Billy and Tommy search for Wanda.
As for possibilities such as Wanda suffering from amnesia or the family storyline extending into Avengers: Secret Wars, these remain mere deductions based on comics and existing plots, not official movie storylines announced by Disney or Marvel.