Personally, I'm more worried about what changes (read: nerfs) they're going to make to the magic system.
You know what I missed in Oblivion that I really liked in Morrowind? Jumping. Jumping crazy ridiculous heights and distances. And alchemy. Mind, I still used Alchemy in Oblivion to fill a variety of roles, from offense, defense, disruption, healing, and turning middling food items into CASH. (SUCK IT KING MIDAS I RUN THIS TOWN) But I missed how that one time, I turned my Morrowind-ian Breton into a physical god by using/abusing an infinite Fortify Intelligence Potion trick I found. Even though it officially ended the game as I had known it, it completely changed how I played the game, which in turn made a game that was slowly becoming boring fun again. Another thing I missed was putting activated abilities onto wearable items. I had Jump Pants. They made me really good at jumping, and they were blue. A moment of silence for the Jump Pants.
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Also, I heard from a Gamestop minion that Skyrim will have dual-wielding, so you can theoretically have two spells ready at the same time (or two weapons, or a weapon and a spell, whatever). This strongly suggests that in order to maintain "balance", they will make the spells even less effective than they were in Oblivion.
One change I
would like to see, however, is the removal of that god-awful "level-matching" nonsense from Oblivion. Because maybe I
want to have an area of weaker creatures to work out on and to pull alchemical ingredients from their corpses.
Ooh, but one thing I want to see carried over from Oblivion: Deer. Because I
hate deer, so I both laud and thank Bethesda for giving me the opportunity to paralyze a group of deer at range, and then run up and punch them to death. And then turn the venison into health potions.
(Just watch now, the whole magical school of Illusion won't be in Skyrim. I ruined everything by saying something and jinxing it.)