Doomsday rumor claims the upcoming MCU event movie may have a few more surprises waiting in the wings. According to an online claim from scooper @bluemintues on X, recent reshoots have apparently brought additional heroes into Avengers: Doomsday ,

Filmmakers Anthony and Joe Russo confirm they are taking an improvisational approach to the production of the upcoming Marvel blockbuster Avengers: Doomsday.

Even without these rumored additions, Avengers: Doomsday already has an unusually large cast. Robert Downey Jr. is returning to the MCU as Victor von Doom rather than Tony Stark. Chris Hemsworth, Anthony Mackie, Chris Evans, and Tom Hiddleston are also among the returning Marvel stars. The Fantastic Four are part of the film as well.

Marvel launched the "Countdown to Avengers: Doomsday Official Podcast," a new video podcast on Disney+, YouTube and audio platforms, recapping the films in the MCU’s Infinity Saga leading up to the latest movie.

The first look at Doomsday leans into a darker tone, a scared Thor, and glimpses of old school X-Men that leave more questions than answers.

Avengers: Doomsday and Avengers: Secret Wars may have pushed Marvel to assemble the best MCU writers together. The awaited superhero epics will feature a massive ensemble cast, led by Robert Downey Jr., Chris Evans, Chris Hemsworth, and more.

Bucky Barnes returns in Avengers: Doomsday this year, but if he dies fighting Doctor Doom, it will be a huge waste of a longstanding MCU character.