I'd like to see the trademeet quests expanded. The two families are supposted to the major player in Amn, so some kind of quests from them (depending on which family you back) would seem in line. Also, If you play an evil party (which apparently means low rep) you get an opportunity to poision the grove. The rewards from this a worthless, so I only did it once. I would like to see some expansion on this. Who did the gnome work for?
With Maevar and the night knives, the documentation you get to prove his guilt mentions the guild out of Westgate, but that is the night MASKS, which are a vampire thieves guild. Given Bhodi's efforts to establish the same, I would think there was some kind of connection