Most notable features so far:1) Active and finished quests listed in the Journal. Never should have been left out, IMO.
2) Ability to notate map. Interestingly, I couldn't do this in a third party plug-in. May reqiure some reprogramming.
3) The ability to hire a mercenary to carry your goods and fight for you. You do have to pay him, however. If you don't, he'll leave.
4) The ability to hire a pack animal. I've seen a plug-in that has offered this for some time, but it was pretty buggy. (At one point it duplicated itself in my game, setting up identical merchants alongside one another.)