I would love to play a P2P game, but it'll be a long while for that.
I heard about this Aio -- I mean Aika Online. I might give this game a small chance. :V If it don't work out, MMO's are done.
If you are all in for PvP, RvR play Aika.
But really the only thing really is PvP/RvR, and thats all.
If you want more, you could just wait for some ''decent'' releases.