"It’d be very hard to do, because Halle, Famke, and Jimmy and others have done such wonderful jobs of bringing those characters to life," said Kinberg. "But I also would have said before ‘First Class’ that there would be no actors who can stand alongside Ian McKellan and Patrick Stewart."
So "Apocalypse" will essentially be a continuation to the "past" in "Days of Future Past," said Kinberg.
The piece then goes on to add: "Also likely not to be back in the franchise for a while: First-wave characters like Storm, who was played by Halle Berry in 2000’s ‘X-Men,’ but who’s yet to appear in the "past" timeline. Because ‘Apocalypse’ takes place twenty years before the first ‘X-Men’ film, if a character such as Storm — or, for that matter, James Mardsen’s Cyclops or Famke Jannsen’s Jean Grey — were to appear in the next film, they’d likely have to be replaced by younger actors."
I know that many of you have hoped that Storm would be recast in past films, for one reason or another. So, assuming she does eventually show up in later X-Men films, whether in the "past" or "future," she’ll very likely be played by someone else. I believe Halle Berry herself hasn’t been too keen on continuing to play the character anyway, so maybe, inevitably, all sides will get what exactly they want.
I should also note that Hugh Jackman recently said that, after the next Wolverine movie, which is set for a 2017 release, he’d likely retire from playing the character, and a younger actor would have to take over… inevitably.
So assuming Storm would eventually return for future X-Men movies, who would you like to see play the character, whether in the "past" as a youngster, or the older version, as played by Halle Berry, or both?