The huge success of Deadpool and the buzz around Logan also suggest that Fox is finding its feet in the new era of superhero blockbusters.
With Logan being set so far in the future, it’s only logical that Stewart would be returning as his, much older, version of the character, and it will be interesting to see how this future Professor X may impact McAvoy’s take on the character in later films.
This would suggest that McAvoy’s contract situation with the studio is either extremely flexible, or that he is not currently contracted to take part in any future X-Men films, which would make sense considering his initial contract only stipulated three films.
It’s no surprise that McAvoy is enthusiastic about continuing to play Charles Xavier, although it is interesting to hear (even jokingly) that he may turn down future involvement if it’s not a “really good part”.