Avengers Doomsday CinemaCon: New Trailer Reveals What About the MCU?
New footage from CinemaCon 2026 gives us a clear look at Avengers Doomsday. It shows how the Marvel Cinematic Universe plans to end the Multiverse Saga and bring the X-Men home.
Watch the full breakdown in the video below:
Source: ScreenCrush
The Core Threat: Incursions
The multiverse is dying. The trailer confirms that the Avengers are responsible for the damage. Every time they traveled through time, they created new branches. Now, these realities are crashing into each other. This is called an incursion.
- The Stakes: When two universes collide, one or both must be destroyed.
- The Decision: The heroes are forced to make unthinkable choices. They have to decide which worlds to save and which to lose.
The Three Universes
Avengers Doomsday brings together three separate worlds. This creates a massive collision course for our favorite characters.
- Universe 616: This is the main MCU world with Sam Wilson and the new Avengers.
- Universe 838: This is the home of the Fantastic Four.
- The X-Men Universe: This is the final chapter for the classic Fox X-Men team.

The Plot: See More
The Cosmic Wonder: Avengers Doomsday Leak: The Last Dance (MAJOR Plot Spoilers)
Everything Always: Avengers Doomsday Reshoots: Is Marvel Revisiting Tony Stark’s Funeral?
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