Even when I have debated the other way, as far as uniting all of Marvel's characters on the silver screen, people have told me the mutants are very secretive and keep a low key, and the large communities are largely based underground. And that's true. My whole idea is say whenever X-Men gets back to Marvel, could you realistically account for the X movies thus far in Marvel's present continuity. I am saying yes because from IM to IM3 I am thinking they will cover no more than a couple of years, and it's not they can or should explain every aspect of Marvel Universe just for the sake of combining the universes (even if they could) in such a short span of time. Just saying that, say Marvel doesn't want to reboot X-Men and feel they can vastly improve on X-3, or whatever Fox's last set of X-Men films are, I think there could be a seemless transition if it is done right, while accounting for aspects directly portrayed in previous X films at Fox. Now if Fox's X-4 keeps adding new elements that widen the scope of the universe, then it will be less and less believable that other Marvel superheroes co-exist with mutants.