Re: What is DOFP setting the groundwork for?
There is a lot that can happen with time travel. It's too early to tell what will be the next few X-Men movies after DOFP. What ever does happen after DOFP will likely indicate which cast will move on to the next few movies. If anything I can see a trilogy with the First Class team, so there might be one more movie with the First Class team after DOFP.