An Elder Scrolls game that doesn't star your character as some special hero.
The game wouldn't even have to be cannon.
The Elder Scrolls are all about role-playing, right?
Who says that they need to be all about combat?
You'd be able to start the game off Fallout 3 style as a child and play as your character as he grows older.
You can choose to grow up in the any one of the 8 towns of your choice.
Improved and fleshed out marriage system. Marry your childhood sweetheart and settle down, be a playa with the ladies, or cheat with the neighbor's wife, anything you want!
You could become anything you want.
A farmer, bard, blacksmith, shop owner, woodcutter, fisher, etc.
The game would of course include combat especially if you chose to become a mercenary, bandit, or a soldier.
All with a realistic in-game economy.
It would also include mini-games such as cards, competitive archery, or the ability to play an instrument. (Ocarina style)