Re: What would you rather see next - FIRST CLASS 2 or X4?
What a silly question. Both. The smart thing to do would be to start building a storyline in X-MEN: SECOND CLASS that culminates in future films. They should have been doing that with the Hellfire Club, frankly.
There are plenty of interesting places for X4 to go. I think people are a bit shortsighted about the team.
The current team appears to be Wolverine, Storm, Colossus, Iceman, Kitty Pryde and Angel. That's a pretty decent lineup already. Possibly Beast would have a role. They haven't even scratched the surface of Jubilee. Banshee could always be brought in somehow, maybe Gambit. Dazzler would be amazing. There's Forge, Cable, Bishop, etc, any number of other lesser known characters could work.
If that's not enough, then there's an obvious built in way to bring Xavier back, the cure clearly wasn't permanent, so there's no reason we couldn't see Magneto and Rogue again. If filmmakers wanted to, they could easily find ways to bring Scott and Jean back (Sinister, anyone?)
There's really no reason we couldn't see Emma Frost in X4 (Sigourney Weaver, anyone?)
And let's face it, Stewart and McKellan won't be available forever. They should use them while they can.
Writer and Lyricist of GOTHAM'S KNIGHT: THE BATMAN MUSICAL
And if I'm right
The future's looking bright
A symbol in the skies at night