BH area like the old crater, pay for entry(150-250k?), pick a build (like in tourny worlds during the ashihama rewards testing) and getting a kill earns you 95% of your opponents entry fee. The point system is easily exploited. Make it zero sum for bots as well as a gold sink. Lets anybody pk how they want without having to spend months creating an entire new account strictly for pking. Stops the killing pures for like 50k loot problem as well.
Doesn't force players who have no interest in bridding to do so (lms) and guarantees loot for killing another player while also removing gp from the game, while keeping the playing field level, like lms. I love bridding, but obviously the edge style pking is the most popular among the community. Minimize risk, incentives for managing to kill another player. A simple coffer system would do, stepping into the portal/door/whatever deducts the cost of entry, kills add the coins to your coffer. Also stops the problem of dealing with looters like in PVP worlds.
I like the concept - that's a nice starting point to design from. My would be that it's not very enticing for new PKers who would lose a lot of GP initially. Maybe this could be fixed with an option to pay a lower fee. Obvious the reward you get for a kill would be reduced accordingly. One other problem is that replacing drops with pure GP might not feel as exciting or capture the essence of PvP in the way we're hoping to.