I wouldn't completely take away the "class" structure, just make it more costly EP wise to buy Knacks from other areas. Other then that, the one change I'd make is to actually support the game with supplements, maybe actually advertise the games. White Wolf has a problem with letting lackluster selling games linger, as opposed to making them known i.e. They should have their play groups play changling or the Aeon games in local game stores.