This is a bit of a tangent here since I know this is not what you mean but I would like the next Elder Scrolls game to be set in Elsweyr since it would have the environmental ascetics of both primarily desert wastelands and lush jungles. I also like the idea of learning more of the Khajiit culture and background in the Elder Scrolls Universe, however I doubt that we would get it because of the furry connection that a lot of people make with the Khajiit.
Anyways I know what you mean and I would really like to see a game set in Ancient Sub-Sahara Africa or maybe somewhere on the border like Timbuktu simply because its barely mentioned anywhere people have an ancient cultures discussion.