Filmmaker Bryan Singer recently revealed that he is looking at getting two previously seen mutants to return for the upcoming "X-Men: Apocalypse" due for release in 2016. Speaking with Mexican site CinePremiere, Singer says (translated):
"I'm considering Gambit and potentially a young Nightcrawler for 'Apocalypse'. I was going to have Nightcrawler [in 'Days of Future Past'] and even wrote a scene, but I felt that we were forcing too many mutants into the story."
Alan Cumming played Nightcrawler in "X2: X-Men United," but with the 'Apocalypse' story set in the 1980s it will no doubt be recast.
Gambit on the other hand is a trickier situation. Taylor Kitsch played the role in "X-Men Origins: Wolverine" which had events set in 1981. Logically, Kitsch could reprise the role as the character will be about the same age. The actor has also previously expressed interest in returning, however producer Lauren Schuler-Donner has previously spoken about recasting.