In the River's Rest folder user NOVINDUS had a great idea that I think would be great to expand to all towns.
http://forums.play.net/forums/GemStone%20IV/Towns/River%27s%20Rest/thread/1491096
City specific titles on attaining citizenship.
City specific titles being unlocked after attaining citizenship would make a nice low level achievement goal and add to the overall flavor of each of the cities.
Chad/Nouvard