Given how many of Hickman's concepts they have lifted for the MCU, wouldn't be surprised if they used the Council of Reeds and Future Foundation story arc for the F4 movies, and then the Incursions/Secret Wars for the main Avengers movies.
The final battle in Secret Wars is already MCU franchise friendly - Black Panther, Captain Marvel, Star-Lord, Spider-man, Thor Jane, etc. Just add Doom and Reed, and its pretty much identical to the comic.