Ideally RPGs will stop using the top down isometric view entirely. It destroys any semblance of realism and does nothing to make you feel like you are a part of the experience. Seeing everything around you a long way in every direction is like you are playing the game from someone other than your character's perspective; someone who sees way too much.
My main quibble with Morrowind was the low diversity of monsters and their ease to dispatch. Once you got to about level 20, you could kill any of the monsters easily and the game rarely had you fighting multiple "good" opponents who may have presented a challenge.
The expansions helped to remedy that. The monsters started to come in packs and were more challenging.
They also took a few steps backwards from Daggerfall which hopefully can be remedied in Oblivion. Things such as a day-night schedule, horses, ships, banks and bank notes would all be very nice to have once again.
