You see a hospital type bed with what appears to be Xavier lying in it. A woman in a medical type outfit comes in and the man says, Hi Moira (or some such name), as if he recognizes her, so brain function there. It may have been the woman he was showing on TV in the ethics class with the school kids that got interrupted... the one about doing brain/personality transplants, but I'm not sure about that. So you are left to wonder, was his body reassembled? Is this a clone? Or what? But at least you can be sure Xavier will be back.