Why would Rogue be in First Class? It's a prequel. She didn't even know she was a mutant until the start of the the first movie. Well ****, let's just flush all continuity out the window. Nobody will notice. :rolleyes2:.
They've been very ambiguous as to whether or not it will be a prequel or all out reboot. Can't help but wonder if the otherwise irrelevant Xavier cameo in Origins was intended to segway into this upcoming film.
Sorry buddy but you're wrong there. First Class has always been set up to be a spin off prequel starring a younger cast from the X-Men movies, and it still is. So to answer your rhetorical statement, its always been a prequel.
I'm quite positive if Paquin does return as her character it will only be as a cameo set before she discovered her powers. I don't think they'll do something as drastic as adding Rogue into the First Class of X-Men.