A crouching position like in
An option to leave Shadowmere "parked" when he's not being used.
A doctor that does facial reconstruction for people who are never satisfied with their look… including war paint.
More war paint… Full body war paint, can act like tattoos or something.
Deeper storyline for the Dark Brotherhood.
Less NPC's that are "immortal."
reverse pickpocketing explosives. =)
I would want to have more impact on politics, say like you'll help a faction so far then turn on them with another rival faction.
"six" with your wife in bed like in New Vegas. lolol
Also in the beginning, Wood Elves should automatically be able to be cannibals without the ring of Namira.
I have more in my head, but I'm tired.