I keep reading that this is the last movie, probably because of contracts and scheduling difficulties. Why not continue the movies, but expand on the characters? If so and so isn't available to play this or that character, use a diff character!!! Good grief, there are enough x-men!!! A revolving cast cast using diff x-men would be cool, and we'd all get to see our fav x-men in the movies. There is only so much of Wolverine and Halle Barry that I can stomach before I want to just slap the writers! Nowhere is it written that to have an x-men movie you have to have Wolverine.
Furthermore, wouldn't it have been cool if Storm had actually been in the movies? I'm not sure who Halle was playing, but it sure wasn't Storm.