User blog comment:Kacj321/Entire Tamriel Landmass built into Skyrim/@comment-3546122-20111123005534/@comment-4613357-20111123222850

It very well could happen, they already have the land masses/locations, they already have the base city models from Oblivion/Morrowind/etc... Just need to update the graphics for Morrowind, create some news items, armors, etc.. Some radiant quest, a fairly decent quest chain. Possible that is why it took so long to make Skyrim?