As has been mentioned, I'm hoping for some new spells, though I'm sure that will come at some point anyway, whether it'sin this DLC or the next one.
I'm also hoping for some new means of becoming a werewolf! I thought it was stupid that if I want to RP as one, I have to join the Companions.
actually you can also become a werewolf in a quest located in Falkreath. though that is a different kind of werewolf situation involving a ring and its random effect. but still an alternative means. but hey even Companions method is better than Oblivion, which didn't have werewolves but it did have vampires. if anything, fans should be priviledged werewolves got their own controllable transformation ability, plus a questline tied to a Guild.