Read: Risk vs Reward. That was always the point of making "interesting things" in zones that are PvP. Making a switch ruins that concept of the game.Funcom put alot of interesting thing in pvp zones, some good shop spawn too. Unfortunely, ganker kinda drive people away from these zones.
The Master Clan Assasin that runs around 4 Holes has nothing to do with PvP. He's a wandering NPC that is a pain in the @#$. I'm not really sure why you brought him up. As far as I can tell, he's for a nice shoot-out scene between NPCs. I've watched them fight.