Age of wushu is pretty good so far. It is f2p. Tons of fresh and original elements, like no classes, only school styles. Very constant world, you can open shops, kidnap offline players, run on water, play bejeweled to lvl crafting instead of endlessly farming mats, lvl up skills in various interesting ways, open world pvp and captial punishment system.
Darkfall :unholy wars is full releasing april 16. Its sub to play last i checked. Twitch based combat, hardcore pvp meaning you die you lose everything on you, but vice versa when you pk someone, towns and areas to control.
Neverwinter is going into open beta april 30th. Its f2p. Very fluid action combat system, player made quests and dungeons, game currency to pay currency AH meaning you don't have to pay cash for premium items, rogues finally get their dues compared to they shaft they got post-vanilla in wow.
Check em out!