Thanks to Deadline we have the synopsis for X-MEN: APOCALYPSE
"Apocalypse takes place a decade after Days of Future Past and is a seamless next step in the story. The altering of time has unleashed a new and uniquely powerful enemy. Charles (James McAvoy), Erik/Magneto (Michael Fassbender), Raven/Mystique (Jennifer Lawrence), Wolverine (Hugh Jackman) and Hank/Beast (Nicholas Hoult) are joined by young Cyclops, Storm, Jean and others as the X-Men must fight their most formidable foe yet – an ancient unrelenting force determined to cause an apocalypse unlike any in human history."
Also Bryan Singer will direct