Square Enix just created a new Twitter account called the Lightning Room. It’s a special account that will contain all the announcements related to Final Fantasy XIII at the 25th Anniversary event this weekend. The first post from this Twitter account is from Yoshinori Kitase, the producer of Final Fantasy XIII. He states that the Lightning Room was created to coincide with the presentations that will be held on September 1st, which is when new Final Fantasy XIII details will be revealed for those who have forgotten.
The Lightning Room is entirely in Japanese. If you want to follow it, you can do so here (https://twitter NULL.com/LRFF13). Though, do try to refrain from complaining about that teaser site for The World Ends With You on it.
Source (http://andriasang NULL.com/con2e7/ffxiii_lightning_room/)