Here's an idea I'd like to pitch at you guys. For those of us that love PvP, I think BW should implement an experience system for killing other players. For example, if player x attacks player y who is 2 levels above player x, they would get a larger kill exp if they end up killing said person. Take that value and diminish it for players 2 levels below you. Only award exp for killing people within 2-5 levels above and below you. But it at least needs to be a viable option of leveling.
Also, maybe add a medal system for it too. Kinda like a badge of honor thing. I've got a few here that I thought of.
Stonewall: Enemy player attacks you first and you win.
Predator: You attack first and win.
Tail Between Your Legs: Successfully ran away from multiple attackers.
Your general multikill-esque medals.
General damage, healing and protection medal.
All of this would go onto a medal sheet listing how many of each you have. It is just an expounding upon the Valor system.
This would solve a lot of problems in my eyes. It would revitalize WPvP for more planets other than Ilum as truly every shared-faction planet would be a warzone. I'll expand upon this as I think of things and you all are welcome to throw in ideas and I'll give you the credit for said idea.