Furthermore, a set video revealed that the TVA (the same organization seen in the Loki Disney+ series) will make a comeback. Avengers: Doomsday teaser could represent Earth's Mightiest Heroes learning about DoomThe Russo Brothers have shared a picture from the set of Avengers: Doomsday with the hashtag "Doomsday is coming" on their social media account, and fans are trying to decipher what it means. Needless to say, the masterminds behind Avengers: Infinity War and Avengers: Endgame love a good, cryptic tease. But the most interesting part is the tagline "Doomsday is coming". Avengers: Doomsday will be released on Dec. 18, 2026.