Here's the obligatory continuity question that you can feel free to tell me just not to think about too hard - Age of Apocalypse is going to be a domain in Battleworld - but in X-Termination a year or two ago, that reality was explicitly not only sealed, but cut away from the multiverse to contain the X-Terminators that threatened to destroy all of reality. How is it able to be a part of Secret Wars (or will it be explained)? If there's no real answer, don't care - just curious.

Anonymous
The Multiverse is the aggregate of all universes. You can’t cut a reality away from the Multiverse–that doesn’t make any sense. So characters may have believed that was what they were doing, but the function could not be exactly that.