Re: Where does the franchise go after this?
Days of Future Past could quite frankly reboot the X-Men Franchise. They could continue with X-Men: First Class 2 and have new characters and firmiliar characters join the group and not worry if this would contradict the original trilogy, as they would be writing a new history.
Similarly u could have another X-Men film, that would sort of act as a rebooted X4, with new actors playing the characters and the world that they would be shown in would be a totally different incarnation to the OT. Essentially it would be a rebooted X-Men film, but it would still have ties to FC, as well as DOFP. so the OT would still exist in a seperate timeline... Just like what JJ Abrams did with Star Trek.
I'm also hoping for X-Force, Gambit and the Marauders and Cable film (ft Bishop and Deadpool)