There's still quite a bit of secrecy surrounding the third part of the second X-Men trilogy, which is titled "Apocalypse." There are numerous rumors of who will and won't be returning to this final films, but one this is for sure. This will be Jennifer Lawrence's final film.
Supposedly, Mystique will play a larger role in this film, even though she had a pretty significant role in Days of Future Past.
Currently, Bryan Singer is on board to direct and the film is expected to his theaters on May 27,2016.