The official Steve Rogers teaser for Avengers: Doomsday hints at a seismic shift inside the Marvel universe as familiar heroes, new teams, and long-teased legacies collide. With the Avengers joined by the Wakandans, Fantastic Four, New Avengers, and the X-Men, the teaser sets the tone for a massive crossover event that raises more questions than answers. Avengers: Doomsday arrives in theaters December 18, 2026.