Square Enix have now officially launched a site for their upcoming dks3713 event which confirms FFXIII, Versus and Agito to be attending. This also debunks any earlier rumors of Agito being cancelled.

The lineup for the event is as follows:

「FABULA NOVA CRYSTALLIS FINAL FANTASY」シリーズ

* ・FINAL FANTASY XIII (PLAYSTATION® 3)
* ・FINAL FANTASY Agito XIII (Mobile)
* ・FINAL FANTASY Versus XIII (PLAYSTATION® 3)

「KINGDOM HEARTS」シリーズ

* ・KINGDOM HEARTS Coded (Mobile)
* ・KINGDOM HEARTS 358/2 Days (ニンテンドー DS®)
* ・KINGDOM HEARTS Birth by Sleep (PSP®)

DISSIDIA FINAL FANTASY (PSP®)
The 3rd Birthday (Mobile)
シグマ ハーモニクス (ニンテンドー DS®)
FINAL FANTASY VII ADVENT CHILDREN COMPLETE (Blu-ray)

Source: Square-Enix [SQUARE ENIX presents DKΣ3713 Private Party 2008] (Thanks, lightning.versus.xiii!)