Lostark is described as a hack and slash MMORPG with 'extreme action' that allows you to 'knock numerous enemies down with a single blow'. It's being developed in Unreal Engine 3
The game uses an isometric top-down view, and will have a total of 18 playable characters (some being gender-locked). There will be various mounts and combat abilities, and the first closed beta is due to arrive in 2015 in Korea.
Check out the rather lengthy, but rather beautiful, 8 minute debut trailer for the game below. Thanks, Steparu.com.
Credit to my friend, Kym, who pointed me in the direction of this gorgeous-looking game. Thanks, man.