James McAvoy speaks to Screen Rant

 
Screen Rant: One thing people are wondering is how Professor X is going to be depicted in terms of combat, as he trained for it in the comics.
James McAvoy: He’s not too combat savvy in this film, it has to be said. He doesn’t do too much, he’s sort of a consultant with the combat guys. But he does get involved in a few little bits of fisticuffs, I wouldn’t say that he comes out well in any of them, but I wouldn’t say that he gets his ass kicked either. Yeah he’s not particularly combat ready.

SR: So it will be more about the mind control.
JM: Yes.

SR: Will he end up in the chair at the end and will he end up bald? Because that is the current rumor.
JM: You’ll have to wait and see, you’ll have to wait and see. It’s actually quite satisfying when you get to say that: ‘I’m not allowed to say.’ Because nobody’s actually told you that you’re not allowed to say, but it’s sort of implied.

SR: Ooooookay. What if anything did you take from Patrick Stewart’s portrayal?
JM: I’ll tell you what I did take – I looked at all of the things that he did the hardest. I looked at all of the things that came out the strongest in his performance and we said we have to go the opposite way. Simply to validate why we were making this film, because if they were just the same there would be no reason to make it, we have to show how different he is. We have to show a journey – so he clearly has to start in a different place. So the main things that we looked into are the fact that he is ego-less, selfless, a very good person, he’s sexless – he’s sort of like a monk. We thought of what the opposite of all of those things would be – so now he drinks a lot, chases women quite a lot, and doesn’t mind sort of abusing his power to get ahead. He’s definitely got an ego, and he’s definitely a little bit selfish. So that’s where we start with him, and so he’s now got to grow towards –Sir Patrick.

SR: So it’s the experiences of this film that make him who he is as a character ultimately?
JM: Yes.

http://screenrant.com/james-mcavoy-xmen-class-interview-professor-x-rothc-97608/