Do you think we’re gonna see New York (Avengers/Spider-Man), the X-Mansion (Mutants), and The Baxter Building (Fantastic Four)—and place them all on the single "Revised Earth-199999," sharing one unified history. Until the Multiverse collapses. with the cataclysmic dual-event of Avengers: Doomsday and Avengers: Secret Wars.

The core MCU timeline (Earth-199999) is consumed and reconstituted. It is forged into a single, cohesive "New Sacred Timeline." This reality retains the crucial emotional history of the Infinity Saga (Iron Man’s sacrifice, Thanos, The Blip) but retroactively integrates missing lore from adjacent realities. A soft-rebooted world where the X-Men, Fantastic Four, and classic Spider-Man elements did not "arrive" via portals. History is rewritten so they have been native to the MCU all along.
post-Secret Wars timeline