I would like to see the Mayors House able to take regular buffs like fish platters. Or at the very least Settler production rate increase when the Mayors House is leveled up. A lot of people reach the point where they can create the resources for units quicker than they can the units themselves and rely on masses of bread to keep the game moving.
8 Settlers per hour will not make the game speed away out of control and still keep it at a nice sedate pace.