Square Enix has officially announced Final Fantasy XIII-2 for PlayStation 3 and Xbox 360 at its Square Enix 1st Production Dept. Premier Event.
Details are rather limited at the moment, but it will again be directed by Motomu Toriyama and, here's the surprising part, it will be releasing during 2011 in Japan.
Toriyama claimed that fans had desperately been seeking a sequel to find out more about Lightning, so that's why the game was developed. A short trailer was shown, which will be made available on the 20th of January. It showed Lightning in a fight with a purple haired man.
Everyone was expecting this news following the domain name registration, but I don't think anyone was expecting it this soon.
Source: Official Site