Puck?

 Love the mock-up poster, Bob!  Where'd you find that?

I think I read somewhere that since Puck is not a member of the X-men he's still property of Marvel Comics.

 Knowing this franchise, he'll probably play the new Cyclops somehow...... haha

No that would not be right didn't Fox purchase Alpha flight since some members were in the Wolverine movie? If so Puck would be included.

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 Found it on a google search. I think it is from Deviant art

I guess it could be Puck. But he's supposed to be very athletic and the Dinkster doesn't come across that way. I always thought dwarf actor Martin Klebba would be a better choice for that character.

 Fair enough, just thought he looked a bit like him. @Violator I think he's going to play Cyclops never heard of before brother...Triclops.

I honestly don't know who he'd play, maybe Puck but Puck wasn't part of the Days of Future Past story, I can't think of anyone his size who was.

Maybe Sugar Man or recasting Boliver Trask