Somewhere that would have various settings and different worlds to explore, unlike Oblivion where you could explore the same grassy field with wolves in it north to south of the game map, or get the shimmering island expansion and explore a different map where the wolves are replaced with mutant frogs.
Maybe a map that would expand far enough to have various cultures, like one with a Japanese influence and another with an Argonian influence, and ext till you got your own countries for each race and society in the Elder Scroll universe. Variety would definitely liven up the Elder Scroll experience for me, as even though I was a huge fan of Oblivion, after a solid year of playing it I realized I spent all my time doing the same bloody thing over and over again, only the mods kept it interesting.