I'm wondering whether we should see Cyclops, Jean, Storm, and Nightcrawler being individually recruited, already at the institute together, or a mix of both. Whichever way it happens, I think it should be limited to those four as Xavier's students, and anyone else (Gambit) could appear later.
good point. Id love to see Charles recruiting them one by one, with Cyclops and Jean being the first ones, having then a bit more screentime than the rest. Storm could come third, and in the middle of the movie or so, all of them could go to find Kurt, so it would be like his re-introduction, but not having the same screentime as the big three. In any case, Cyclops should be the first, imo