Perhaps add footstep sounds for players and NPC's? Not something very loud but more in line of what was in Baldur's gate 1 & 2. Perhaps something that can toggled in options if some players don't want it. Also i'd love to see more ambience sfx sounds in "city" areas. I like how the game sounds inside dungeons when you are alone but i feel like the towns should feel more alive.
Example here:
http://www.youtube.com/watch?v=VPmAwGW3OFk&t=0m10sAnd i noticed that some of the humming background noises don't loop correctly. Please fix.