1. Better combat system than button mashing
2. More frequent autosaves with less of a delay
3. Create more than one creature - you can have a mage, a fighter and a ranger, but can ony use one at a time.
4. Companion NPCs
5. Voiced dialogue
6. Remove charms from objects - at a cost.
7. Escape out of cut scenes - One I've seen one, I've seen them all.
8. The occasional dialoge option that occurs only if you have a cetain NPC companion with you and subtle clues leading up to it that help you figure it out if you pay attention.
9. More dragon form activities adnd dragon specialization. Same for any companions who have dragon forms (which should not be all of them)
10. Dragon vs. Non-dragon combat such as dragon vs a gang of trolls.
12. Two options for object enchangements - Disenchant/enchant for a completely different enchangement or upgrade (from say level 4 to level 7) - which should be easier and cost less in materials.