I'd put more libraries around, and have the NPC's give more information (which I'm guessing is already planned). I'd also try to find some way of reminding the players in-game that violence within city walls tends to have consequences dealt by the guards more often than not.
Furthermore, I'd make up more background on Xiosia and stick the information in the game somewhere (again, likely already planned, or possibly there but I just haven't found it yet).
Frankly, I don't think I could lead the settings team competently, though I'd absolutely love to be on one of the dev teams some day (maybe when I'm in college if I still have the time for PS between school, work, and life then ^^; ).