They have more than half a year of 2014 Mustang sales to keep up, I'm sure they have very smart guys working on what info they release. The words 'global release' alone ignited the internet like napalm.
Come to think of it, that picture could be a head fake. A smart ploy by Ford to pop out a so-so sneak preview that would not hinder '14 sales. Could they be that devious?