Direct answer: The latest reports indicate the Avengers: Doomsday trailer was planned to debut around mid-December 2025, with some outlets suggesting a theater teaser attached to Avatar: Fire and Ash and potential online release during Christmas week. However, there have been mixed updates and no single official online drop date confirmed yet. I can look up the latest updates and provide a precise date with sources if you’d like.
Notes on language: You asked in Spanish about the trailer timing; I’ve included both the timeline and a brief clarification in case you prefer Spanish phrasing in a follow-up.
Would you like me to fetch the most recent announcements and cite the sources in your preferred language?