Phase 6 — Doomsday (2026)

Phase 6 is the Multiverse Saga's endgame — the period leading to and immediately following Avengers: Doomsday (2026), the franchise's largest assembled cast event since Endgame. The phase brings together heroes from the MCU main timeline, the Fox X-Men universe, and multiple alternate realities to confront Doctor Doom and whatever the fractured multiverse has made possible.

Avengers: Doomsday is positioned as the resolution of every narrative thread seeded across Phases 4 and 5. Robert Downey Jr.'s return as Victor Von Doom — rather than Tony Stark — is the phase's central creative statement: the actor who defined the MCU's opening era returning in an entirely different register, playing a character whose philosophy is the inverse of Tony Stark's. Phase 6 is where the multiverse experiment concludes. Every essential film and series across the Multiverse Saga is preparation for this payoff.