way points for NPC's of all types is a brilliant idea.
perhaps focus on the NPC's on flat ground for now , as the slopes are very buggy.
and as for the mobs we kill reguarly.
perhaps they could have a cube sized or some sort of polygon range they spawn in, that is randomized
to add some diversity.
it would be great if the beasts and rouges and things roamed , but the amount of times they get stuck on the slopes while fighting them now is pretty sad.
i would still like to see attacking NPC's strafe left and right more while they try to hunt you when they get stuck. but this problem will mostly get auto fixed when the maps are tidied up