Unlikely, sure, but Secret Wars in 2027 provides the perfect reboot opportunity for the MCU. You can literally get a decade out of the X-Men properties in film & Disney+ without ever having to reintroduce new versions of Cap, Iron Man, Black Panther, etc.
At this point, I’d almost prefer if Fantastic Four is delayed until after Secret Wars. Use the next 5 years to pump out a final Thor, Captain Marvel, Doctor Strange, Captain America, Black Panther, Midnight Sons (Blade, Moon Knight, Werewolf by Night, Man-Thing, Black Night, etc.) Disney+ Halloween special, etc. and then just lean into mutants in 2028 and beyond:
- X-Men
- Wolverine / Weapon X
- Storm
- Magneto
- X-Factor
- X-Force
- Starjammers
- Alpha Flight
- Morlocks
- Deadpool
- Dazzler
- Exiles
- Excalibur
- New Mutants / Generation X
- Savage Land
Reintroduce certain characters in due time—Cap and/or Hulk in a Wolverine film, T’Challa in a Storm-centric property (or vice versa), Tony Stark can appear in a Fantastic Four film or an Avengers vs X-Men film down the road, magic-centric characters in Excalibur, cosmic characters in Starjammers, etc.
Some recent MCU casting can be carried over, if necessary, like Shang-Chi, Ms. Marvel, She-Hulk, etc. All those actors/characters are fine, but I wouldn’t cry if we moved away from them. After Moon Knight, I’m not clamoring for another season. And I certainly don’t need to see more stories about Emilia Clarke’s Super Skrull. Idk how much mileage we can get out Agatha Harkness...
Just focus on fleshing out the mutant narrative, set in a rebooted world where superheroes exist (referred to, but not yet seen onscreen).
Tom Holland’s Peter Parker is tricky, given Sony’s semi-independence from the MCU, but maybe another solo film before Secret Wars and then have him heroically sacrifice himself in that movie, allowing Sony to move forward with a Miles Morales-centric live action story (maybe even something more in line with the video games, i.e. an older Peter Parker). In 2027, it’ll have been a decade for Holland. Like RDJ or Evans before him, I could see Holland wishing to bow out with a satisfying finale to his version of Peter (although Sony may want to save such a moment for one of their own released films).
Treat Secret Wars like the Ultimate Comics’ “Ultimatum” (albeit, better written)—a definitive ending for this MCU with cameos celebrating Marvel legacy films. Bring back RDJ and Evans if possible, end Thor’s story, end this iteration of Wakanda (RIP Chadwick Boseman), say goodbye to Samuel L Jackson as Fury, etc. And set the stage for a new Mutant Saga, a new heroic age…