Final Fantasy X-III 2 will arrive on Playstation 3 and Xbox 360 in January 2012.
The date confirmation came in the form of a Tweet sent a couple of hours ago from a Square-Enix rep;
“FINAL FANTASY XIII-2 is slated for a January 2012 release for North America. Be excited!”
One can safely assume that this January date will apply to Europe as well as North America. More on this and from Square-Enix at Comic-Con 2011 as we get it.