Originally Posted by def28
When asked about the FF X Men thing they said it would be after the FF have been established. We have awhile to go on that, and that film may not even be a hit. The others are not exactly a huge success. I would think they would need to crossover SS and FF before the X Men come in.
Exactly. All the more reason to cast younger 20, 30 something actors NOW for X-Men so that they will still be viable for those crossover films 10 years from now. The math is simple.
The other alternative is this: if they keep this current X-Men universe, they would just focus on other mutants and phase out the classic characters. That would mean that Magneto and Xavier (played by McKellan and Stewart) just "go away" from X-Men films because the actors playing them will be in their 80s. Ditto for Storm, Wolverine, Cyclops and Jean--the actors playing them also being too old for the roles.
So that leaves us with X-Men films without the most popular characters. I couldn't imagine a line-up of X-Men without at least one or two of those top tier characters.