The X-Men franchise was the first of the major superhero movies to try to expand its universe by spinning off characters into their own movies, with X-Men Origins: Wolverine being the first one.
Now the studio is game to keep expanding their big-screen X-Men universe, bringing Fault in Our Stars director Josh Boone in to create a big-screen spin-off called The New Mutants. It's unclear at this stage specifically which New Mutants roster will be utilized in this movie, as there are several in the comics, but as the name makes quite clear, the gang does not include Wolverine, Storm, Cyclops and the like.
Instead it could include characters like Mirage, Wolfsbane, Cypher, Sunspot (pictured above) and Warpath (pictured below), the latter two having already made appearances in the future portion of X-Men: Days of Future Past.
New Mutants superfans will need to be patient, though, since it'll be a while before this movie arrives. Fox already has solo movies for Deadpool and Gambit to get through first, plus X-Men: Apocalypse (due in May 2016) and a final Wolverine movie (due in 2017).
Not only that, but Boone will be directing new versions of The Vampire Chronicles and The Stand before he can even get to New Mutants, so it's going to be several years before the project comes to fruition. In the meantime, Boone and cowriter Knate Gwaltney will be slugging away at the script.