User blog comment:JAlbor/Wikia at E3 2012/@comment-4002748-20120523113558/@comment-217.194.202.133-20120525062017

I don't believe that they will create another great DLC like the Shivering Isles.

The Shivering Isles was one of the best DLC's in this game series. All the things that were added into this DLC, like the new items, new armory, new spells, new map and new npc's, all made it seem like a "Completly New Game".

I don't expect Bethesda to create a DLC that'll move us to a realm of Daedra again, as Oblivion was mainly focused on that. Bethesda will probably assume that since a nice amount of Skyrim players either played or heard about Oblivion, they will create a different idea.

So yes, as the first comment on this said... "Been there, done that. Next."