More original X-Men actors approached to reprise roles

Seeing that the upcoming film X-Men: Days of Future Past has a time travel element it has been confirmed that we will see various versions of the characters. In fact, it has been confirmed that Patrick Stewart and Ian McKellan will be back once again for an X-Men film and that Hugh Jackman is in negotiations to return as well. It is now being reported that other actors from the previous X-Men films are being sought after to reprise their roles in one way, shape, or form. There is no report saying which characters director Bryan Singer is trying to bring back but the rumor mill (already) is mentioning Halle Berry (Storm) and James Marsden (Cyclops). Collider says that a lot of the actors from previous X-Men films have offered due to them being fond of Singer.

Personally, I would love to see an Anna Paquin cameo because I have always liked Rogue, but we will have to wait and see how this one plays out. I can only assume another one who will return for some sort of cameo, once again, is Rebecca Romijn as Mystique. She had a very brief cameo in X-Men: First Class and played Mystique in X-Men, X-2, and X-Men: The Last Stand so I can't see that happening any other way.