Ok, looks like there's going to be a collaboration with R2 Online: Reign of Revolution (MMORPG) on November 23th. I don't like the graphics not do I give a damn about the game personally, but just so you know there is an extra official pic from Norihiro Yagi mentioning about the collaboration.
http://r2.webzen.co.kr/events/eleven.../collaboration
EDIT: Needs Korean translation