Marvel has officially released a new trailer for Avengers: Doomsday, and it comes with a major reveal that fans have been waiting years to see: the X-Men are officially returning. The footage offers the clearest confirmation yet that Marvel Studios is fully integrating the iconic mutant team into the Marvel Cinematic Universe, signaling a massive shift in the future of the franchise.
This latest preview marks the third official teaser released for the highly anticipated film, and it leans heavily into the scale and stakes of what’s being positioned as one of Marvel’s most ambitious crossover events to date.
AVENGERS: DOOMSDAY arrives in theatres December 18, 2026.
Here are the other two teasers:
