Photo Credit: Marvel Studios
Some new rumored details about the Avengers: Doomsday teaser trailer have emerged.

Marvel’s Avengers: Doomsday arrives in United States theaters next December. Directed by Joe and Anthony Russo, also known as the Russo Brothers, the film will see Robert Downey Jr. play the villainous Doctor Doom.

There have been reports that the first Avengers: Doomsday teaser trailer will be shown before Avatar: Fire and Ash, which will be released on December 19, 2025. While this has not yet been confirmed by Marvel Studios, a new update tells fans what they can expect to see in the Doomsday footage.

What does the Avengers: Doomsday teaser trailer reportedly show?

According to Film Threat’s Chris Gore, while there are a lot of things he “can’t mention,” the Avengers: Doomsday teaser trailer will show plenty of footage of “Doom in action.”

“You’re going to get not just a glimpse of Doom; you’re going to see Doom,” Gore said. “The way the character was described, in terms of Downey’s interpretation of the character, is a classic Universal monster. Like The Phantom of the Opera — the Lon Chaney Phantom of the Opera. It’s a tragic figure, and a broken figure. And part of it is, his armor, Doom’s armor — Iron Man had the armor, and that was his superpower. Doom must have the armor because he is a broken body. Scarred. Not my words, someone else’s words, but he went full Universal Monster with the interpretation…He needs the suit to actually function…Then, of course, add the element that Doom has not just his technical and skill with science, but also combined with magic.”

This is just a rumor at this time and should be treated as such, as official plot details for Avengers: Doomsday remain under wraps.

Avengers: Doomsday will be released in United States theaters on December 18, 2026, as part of Phase 6 of the MCU. Avengers: Secret Wars then follows on December 17, 2027.