"Monster University" Held Back!

Pixar have announced that they've held back their new prequel to "Monsters Inc" back to early 2013. The original release was to be November 12th, 2012. Now it's March 22nd, 2013.
Pixar's upcoming 2012 film, "Reboot Ralph" was set for the March 2013 date, but now it's been moved to the November date where "Monsters University" was to be.