We Know When the First 'Avengers: Doomsday' Trailer Will Arrive [Exclusive]

First 'Avengers: Doomsday' Trailer Release Date

Avengers: Doomsday is expected to reveal its first footage in theaters this December, alongside a Disney blockbuster. Although the film's release is scheduled for December 2026, fans may not have to wait long for a tease.

Attachment to 'Avatar: Fire and Ash'

Sources indicate that the initial footage from the MCU's next team-up film might be shown with Avatar: Fire and Ash. If confirmed, the trailer could premiere on December 19, coinciding with the release of James Cameron’s third Pandora movie, which arrives nearly exactly one year prior, on December 18, 2026.

Upcoming Marvel Films

The stage appears set for Doomsday, especially after Marvel unveiled casting details that included surprises like the return of several 20th Century Fox X-Men characters.

Secrets and Casting Revelations

Alan Cumming, reprising Nightcrawler, shared he began filming before the script was complete.

The Marvel team remains tight-lipped about specifics of the crossover, even among the cast, heightening anticipation for new information.

Author's Summary

The trailer for Avengers: Doomsday may debut with Avatar: Fire and Ash on December 19, promising fans a glimpse of Robert Downey Jr.'s villain and exciting Marvel and Disney release milestones.

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Collider Collider — 2025-11-06