The second Shigeki no Kyojin game is going to be released December 4th, 2014. The game is a sequel to the previous game that was released late 2013. The game title is Attack on Titan: The Last Wings of Humanity Chain and its going to be released in Japan.
General Information:
Platform: Nintendo 3DS
Developers: Spike Chunsoft
Release Date: December 4th, 2014
Game Trailer:
SayuriCero 
I think this game could be coming to other countries too. The Australia Classification Board have given a 15 age rating to an Attack on Titan game made by Spike Chunsoft.
I didn’t know about that, I might get the japanese one though
Like many, I’m a huge fan of the anime, I wish they would release a PC version of the game, bummer session two of the anime will be in 2016.
Localizing the 3DS game would be nice too, don’t you think?
They will release an SNK movie next year so look forward to that :3