Secret Square Enix team working on secret project

Producer of Final Fantasy and Kingdom Hearts, Tetsuya Nomura, has teased a new Square Enix game that is being develop by a “secret team”.
Nomura also said that details of the project could be released later this year.
 “There is also a secret team working on an unannounced title,” Nomura told Japan’s Famitsu magazine, “so there is a chance that some information about that will be announced this year too, please continue looking forward to these announcements.”
Noruma is currently working as game director on Final Fantasy Versus XIII, he’s also overseeing development of Kingdoms Hearts III and Kingdom Hearts 3D: Dream Drop Distance.
Your best guess as to the nature of the secret project is as good as ours.