1.Hounds Online (Not to be confused with "bounty hounds" online)
Creators define it like an RPS (Role Playing Shooting) game. This game is an instance based FPS with zombies, basically you get into a mission with a group and kill everything at sight, kinda like DayZ but based on action rather than sneaky tactics and sniping.
The instance scheme is the same as C9 or Dragon Nest where you have a safe town to buy weapons, armor and get your quests before you get into real action, and i think there's also PvP on this game, so it's gonna be a hell of a game when it comes out, checkout this gameplay of the Closed beta by Steparu.
Developer: CJ Gamelab
2. GunZ 2
GunZ 2 is the sequel of GunZ: the Duel (duh..) if you never played it, basically it's a TPS with deathmatch "all vs all" and "team vs team" features, it also has a quest mode where a team can fight NPC's, there are all kind of weapons, machineguns, shotguns, rocket launchers, and melee weapons like swords, dual swords and daggers, all in all it's a very fun game.
What GunZ 2 brings to the table is a new combat system more realistic with really good graphics, animations and character design. Check out this awesome video of the closed beta by Steparu.
Developer: MAIET Entertainment
Publisher: Netmarble / CJ E&M GamesSite: http://gunz2.netmarble.net/
3.Blade & Soul
Blade & Soul is a martial arts MMORPG with stunning graphics and beautiful character design, i was able to play this game thanks to a private server and it was amazing, specially when you double tap W (forward) to sprint and then jump you can literally fly!, the combat system is non-locked target meaning you have to aim with the crosshair to hit the enemy, pretty much like a FPS.
Developer: Team Bloodlust.
It's a sequel of the free MMORPG Lineage 2 although chronologically its a sequel of the original Lineage from 1998 now shutdown by NCsoft on August of 2012.The game is nothing like lineage 2, instead it's a hack and slash style like diablo with some pretty fun mouse commands, check this video that explains the game mechanic in detail (skip to 4:15)
This is a highly expected MMORPG because it features an Open world (not instanced dungeon) world with an action style twist, not target locked or point and click, you move freely with WASD and aim to the enemies with a crosshair, pretty much like Tera Online but FREE, this game is announced for late 2012 so it should be out pretty soon.Developer: MAIET Entertainment
Publisher: Perfect World Entertainment