According to our source close to Square Enix, we are able to confirm the arrival of Final Fantasy Versus XIII on PS3 ... and PS4.
According to our information, the change would have occurred there are now nearly 2 years. A moment more complex during development. The life of the project has been anything but smooth sailing. But no, the title is definitely not canceled.
Note that today, the title would be dedicated to Sony machines and therefore do not come out on Xbox 360.
Our source confirmed that Sony would have helped this transition with the PS4 portage financially. The price for such exclusivity? Difficult to judge. Remains to be more and know a release date. Square Enix is scheduled to speak on the subject at E3 2013 in June in Los Angeles ...
http://www.neogaf.com/forum/showthread.php?t=544551
hope it's true