A certain X-film (possibly New Mutants or Gambit) is set to begin shooting in Summer 2017. Or it could be the 90s X-film. No one knows at this point.
http://movieweb.com/x-men-7-production- ... w-mutants/
EDIT: Very unsure on the Singer returning. It could just be a mistake since every other site has reported that he's not coming back. But who really knows at this point. They're also supposed to be rebooting the entire series but there's been scant information on that as well.