A PvP version of a resource world?

[JumboCracky]

I'm hoping I can suggest that there be a new world where it is an almost-exact duplicate of the existing resource world except with only one change; "PVP Enabled". I would be interested in seeing that world because then, players could create a battlefield of their own and fight within the comfort of any biomes they're in, and because a griefing player could go ahead and make anything look like a battlefield, that saves the trouble.

It could also be good for if players were to be interested in producing videos where they would need to harm each other.

Please comment your opinions and thanks.

EDIT:
I made a thought and believe that hosting another world is costly. How about if the world is the smallest world compared to other existing worlds? And only one biome is in that world? Might that save the trouble? And possibly it can wait until a while after 1.7.2 update has been done to SLAP?