http://ca.ign.com/articles/2012/10/12/fifa-13-ea-sells-old-games-as-new
Really good article by IGN. The screenshot comparisons show that they are literally the same games as their respective previous versions--characters are seen doing the exact same poses against the exact same backgrounds, with near-identical menu screens.
EA didn't even provide review copies of these versions of the games, and, when pressed, couldn't come up with a single solitary new feature.
Wow, EA--brings new meaning to the idea of rereleasing the same game over and over again, doesn't it?