The wait is almost over for the first trailer of Avengers: Doomsday. The Marvel Cinematic Universe began Phase 6 this summer with The Fantastic Four: First Steps, and Phase 6 will conclude by 2027 with two new Avengers films.
Collider confirmed the Avengers: Doomsday trailer will premiere before Avatar: Fire and Ash on December 19.
Principal photography for this Phase 6 Avengers installment wrapped on September 19, 2025. Anthony and Joe Russo directed the film, marking a major team-up event.
"The ensemble will mark the return of Robert Downey Jr. in the MCU timeline, but with a twist, as he is set to bring the iconic Victor von Doom, a.k.a. Doom, to life in Marvel Studios' franchise."
"Both Sir Patrick Stewart and Sir Ian McKellen are reprising the roles of Professor X and Magneto, respectively, but the mutants' reunion doesn't stop there."
This mix of returning heroes and villains promises a thrilling expansion of the Marvel Universe, bridging past and future storylines.
Author's summary: The Avengers: Doomsday trailer will debut on December 19, 2025, featuring returning iconic actors and Robert Downey Jr. as a surprising new villain in the MCU.