The Scadrial community definitely needs more rules for Allomancy
But in the next series aluminum will be more common, so I think Allomancers will be less dangerous. Perhaps the only way to use Allomancy in a city, without aluminum, restrictions is to have a job and a license for it
Although I think flying through the air for Lurchers will become as easy as coin shots, as more skyscrapers and tall buildings are built. There may even be metal platforms for flying lurchers and coin shots to do less damage to the city.