Re: Should DOFP be used to reboot the X-Men franchise?
I wouldn't mind a relaunch a la Star Trek 2009 and the First Class branching off into a new timeline after DOFP. Star Trek did a good job of renewing the franchise without invalidating the previous films.
That way it gives the franchise more room to breath, bring in new talent, introduce or reintroduce characters and new story arcs without having to be tied to already existing continuity.
I don't think a 100% reboot is needed.