TERA Online. Looks utterly gorgeous, true action/adventure gameplay, and it's an RPG. I've seen Totalbiscuit's gameplay and the depth of character customization (you can play as a friggin' beaver-warrior, which is an instant plus in my book). I'm interested to see further customization, like talents or whatever the TERA equivalent will be.
So, yeah, WANTWANTWANTWANTWANTWANTWANT. It's just a damn shame that we still have no idea when it'll be released in the US, but you'd best believe I will be there on day one.