Is that all?
Actualy, A few things I'd like to see are
1) An ability to build your own trade empire without actually hauling the stuff yourself. Instead, you would hire your own caravans and guards to do this.
2) Better seiges Like being able to place the ladders, or having better fighting on the interior of the city.
3) Definatly agree with the tavern thing
4) SOme sort of religion system. I know this is a touchy subject, but it would be pretty cool
5)Do an Oblivion style scaling thing, where the stronger you get, the stronger everything else gets. At the moment, I can just steamroller over everything, and combats just aren't as challanging anymore.
6) ability to get married. Strange, but I'd like to see that added in for some reason.
And finally, the thing I'd love most to be added to the single player aspect:
Hire some bloody kid to herd the damn cattle for you.