Stan Lee says that fans need not worry as “sooner or later,” the movie rights to all Marvel characters, including the X-Men and the Fantastic Four, will eventually return to Marvel Studios.
This makes for a great divide between the Fox Marvel Universe and Marvel Cinematic Universe where the Avengers, Guardians of the Galaxy and even now Spider-Man operate.
Long before the MCU had become a thing, Fox has already begun creating films based on Marvel characters, starting with the original X-Men trilogy in the early to mid-2000s and followed by their first big screen adaptation of the Fantastic Four in 2005.
You’ll get more Marvel superheroes than you’ll have time to look at in the next few years.”