User blog comment:Kacj321/Entire Tamriel Landmass built into Skyrim/@comment-3097746-20111127051614

Hmm...interesting Vvardenfell is in it...considering it was supposedly destroyed.

As for DLC purposes...doubt it. Modding? Definately. Especially considering the Morroblivion Mod for Oblivion. They felt they would help out. So that's probably why they are there