Hexes are a must, along with poison apples. Aside from that I hope they introduce new spells and not like rehashed Vampire powers; like hypnotize,command, or slumber (deprive needs would be cool).
A big part I want is a Skyrim like system where you have to try combinations of ingredients to get potions rather than just spamming study. Of course you can buy recipes, but they would cost a pretty penny. Bonus if the drawbacks for messing up powerful potions are equally bad (life bringing potion could end up as a really deadly poison)
