I really do think that some type of battlegrounds would be helpful to all and maybe some type of reward for pvping. Maybe, just maybe there would be some of those that have just preferred pve a chance to try out some pvp and possibly like it.
As this game looks now, the karma punishment has kind of killed open world pvp before it even started. So I wouldn't bet on their being much pk going on. I have played a lot of games with ow pvp and even though I would get killed, I would just suck it up and keep on going.
It just seems a shame that a game billed for ow pvp has already killed it before it opens.