I'd like to see a recruitment tab for the schools. It would allow you the ability to recruit ancillary characters for whatever General/Governor, or family member is in the settlement (i.e. tax farmer, mathmatician, philosopher). This idea could also be expanded to the City Garrison, the player could upgrade the type of guards (i.e. town militia >>urban cohort) which would give more public order %points.

Also a related concept, you could train and procure characters for different levels of government, public health officials, construction, traders. Allow a slot system based on city size (3 slots for a large city) which would allow the player to recruit a NPC with a specialization such as control city growth, recruit more experienced armies, trade more efficiently. Lots of options for more or less aggressive play styles and rebellious regions .