http://www.psu.com/FF-Versus-XIII-pl...0004007-p0.php

FF vs. XIII has been put on hold for a short period of time - the majority of the Versus team have been moved onto the FFXIII team, which means that FFXIII should be finished sooner, but that FF vs. XIII will have to wait until FFXIII has been finished.

Not too bad, really - we get FFXIII quicker than if the teams remained separate, and those who go back to work on Versus when XIII is finished have more experience, thus making Versus that bit better.