Now that we've got Skyrim out of the way, there are still quite a few provinces left to explore in Tamriel (not to mention Nirn)
I personally wouldn't mind seeing something more tropical/Pirates of the Carribeans-esque for a change, seeing as the last two games have been generally like the weather in England.
Edit: Ok my noobishness prevented making this thread a poll, so I'm going to try to keep a Tally..
Elsweyr - 37
Summerset Isles - 24
Akavir - 20
Argonia/Black Marsh - 20
Valenwood - 13
Hammerfell - 10
High Rock - 10
TheDrunkNinja's Idea - 9
Vvarden/Morrowind - 8
Yokuda - 1
Pyandonea - 1
Looks like Summerset Isles and Elsweyr are winning, which is nice to see.

I personally wouldn't mind seeing something more tropical/Pirates of the Carribeans-esque for a change, seeing as the last two games have been generally like the weather in England.
Edit: Ok my noobishness prevented making this thread a poll, so I'm going to try to keep a Tally..
Elsweyr - 37
Summerset Isles - 24
Akavir - 20
Argonia/Black Marsh - 20
Valenwood - 13
Hammerfell - 10
High Rock - 10
TheDrunkNinja's Idea - 9
Vvarden/Morrowind - 8
Yokuda - 1
Pyandonea - 1
Looks like Summerset Isles and Elsweyr are winning, which is nice to see.