I think it would be really cool if there was like a barber in some cities, i'm getting kind of tired of my hairstyle. I know i could just use the the console cheats, but i think a barbers would be cool.
Is there an ability to join the Empire? If there is, someone let me know.
Companions, romance scripts, pets, more detailed domestic furnishing, if you could move chairs and things like that it would be nice.
A few tatoos would be a cool addition to the game.
I am no moder, hell, i just come up with sub-par ideas, if anyone can help or has some ideas to add, feel free.

Whoa, I didn't know you could change hairstyle through the console...How do I do that?

The code is ShowRaceMenu in the console menu, this will take you back to the original creation menu and this can be used at any time in the game.

Wait... so if I were playing Oblivion (I'm not yet haven't got it ) I could change from Breton to Dark Elf to Wood Elf depending on the situation ?!?!

Yeah. You've got to remember though not to close the console or the race change menu. Keep them open, save, then load the new game for your new appearance/ race. Otherwise you'll have your stats changed.

Also, remember that changing race also changes your skills/attributes, depending on the race variations. So if you change from Redguard to Breton, you'll lose some fighting ability, but gain in the magic stakes.

Or you could just use the other console cheat and raise your skill points back to the ones you had before.