1. Enchantable or creatable arrows using frost, fire and void salts would all be nice. As an archer I want to be able to make my arrows that take out those pesky elder dragons -.-
2. More minerals/armour
3. Less difficulty curb between apprentice and adept that is an absolute b**ch
4. If there we're to be mammoth mounts it would be cool of you could fire arrows off of the back while riding.
And they are my suggestions