In a recent interview, the actress stated that she is 90% sure director Bryan Singer is bringing her back into the fold, and that the character has a substantial role in this prequel-sequel mash-up. At this time, she has not officially signed a deal, but its highly unlikely that she will drop out or that she will be replaced, as the film begins shooting in a little over a month, with production starting in April.
Halle Berry has played Storm three times, in X-Men and X2: X-Men United, both directed by Bryan Singer , and lastly in X-Men: The Last Stand, directed by Brett Ratner.
Halle Berry most recently appeared in the sketch comedy film Movie 43 and Warner Bros' historic thriller Cloud Atlas.
Official studio confirmation on the actress' return is expected soon, with Bryan Singer to most likely announce it on his personal Twitter page.
X-Men: Days of Future Past comes to theaters May 23rd, 2014 and stars Jennifer Lawrence, Michael Fassbender, Nicholas Hoult, Peter Dinklage, Hugh Jackman, Evan Peters, James McAvoy, Ellen Page. The film is directed by Bryan Singer.