Originally Posted by def28
It's confirmed he's in both times, not that he's the traveler. But it would probably be a safe bet to assume so.
I think that the time traveller (or the time-displaced person heh) will be either Wolverine or Professor X, depending on how they tackle it. If it's some kind of mind displacement I still think it will be Professor X, simply because his powers are just more naturally suited for that sort of thing. And because the story according to Singer is about how things you've done/haven't done as a young man in the past affect the future and what if you could go back and change it, which again to me feels like a more natural fit for Professor X. I know that he can manipulate other people's minds as well, but mindswitch for a character like Wolverine still feels strange to me somehow. But you never know of course.