nightcrawler, cyclops, Jean grey, jubilee, professor x, magneto, mystique, psylocke, quicksilver, caliban, Moira mactaggert, havok, storm, angel, beast, and gambit and wolverine are rumored. Bryan singer has posted pictures of nightcrawler, cyclops, Jean grey, and jubilee, and what seems to be a ship.
ryan reynolds from x-men origins wolverine will be deadpool again this time with the suit and there are like thirty different photos of the movie.
hugh jackman said this will be his last x-men movie.
this has just been confirmed by Bryan singer so there hasn't been information on this.