This forum is for discussing Skyrim. If you would like to discuss potential future Elder Scrolls games please use http://www.gamesas.com/index.php?/topic/1242906-official-beyond-skyrim/ or http://www.gamesas.com/index.php?/topic/1279536-next-tes-location-vote/ in the Elder Scrolls series forum.
A game where each individual province is covered in detail comparable to TES III, IV, or V doesn't seem feasible to me. Even if they could get the developement done, one would likely be able to max out all of the skills without leaving a single province, which would make much of the game world superfluous.