User blog comment:The Milkman/Phantasy Philosophy: Elder Scrolls/@comment-669073-20120916065110

If you think about it, with the Civil War over, if they keep with the Thalmor conflict (which they will), the next major hurdle for them would be Hammerfell and the Redguard (High Rock would probably play some part also). As of now the only reason the Altmer would pull back to Summerset is if the Sload launch a large scale attack, and that's unlikely, but something the Altmer are always watching for. With Sload as far north as the southern islands of Hammerfell, it's possible they will make an appearance in TES VI as long as it's not set in Black Marsh (or Morrowind).