This is going to hurt, I know it, but I want to launch my idea:
Why not a remake of Skyrim, even if not very soon? That game really caught me, in spite of all the praises in favour of the Witcher 2, and many other rpgs, even actual ones such as the magnificent Shadow of Mordor.
A complete remake of this game (Skyrim), with better animations, physics, graphics, more side quests and some ideas that I had already suggested for the next TES game, such as seasons, festivals, more realistic and violent weather effects, the possibility to travel by boat and no more boundaries between cities and external environment...
Yep, my idea is at high risk of flame, but I really believe it would be great an enhanced version of Skyrim! Sincerely!