When a person is knocked unsconcious, he should fall in a heap like.... a ragdoll. Ofc first we need the ability to knock them out, like backstabbing with a blackjack. Then, even if they've taken a deadly wound, there should be some muscle activity as they go down. And when they're pushed off acliff, they should fall realistically, not in a standing position all the way down. The ragdoll should take effect immediately when they land. (jumping down from that peak in TES4 looked ridiculous)
With death animations and sounds realistic enough, you could actually feel a bit bad for the NPCs. They should beg for mercy, for example.
Then, as a healer of some temple, you would be sent around the places to give first aid to badly wounded/diseased... teaches you some more sympathy.
Never played, sounds good!