Well heres the main idea thats been run by (Mostly by Merkur):
Allow cities to be taken over by guilds.
When all guards in the city are killed (the leader must still be alive, for ex. freportw is Sir Lucan) you hail him and he will surrender the city to you. To keep the city you would pay x amt in platinum and the city would respawn on your guilds faction (which is another feature that will be added soon, allowing guilds to choose their faction with others, npcs and pcs) But the newbies would most likely be non-kos to the guilds, I doubt the guilds are out there to kill the newbies
Then to add to it, when you own a city you would get x amt of money per eq day that was generated by taxes.