this one from the Fellini interview is going to be the official one I think
http://www.bluekipper.com/images/1338534948-Kits.jpg
The others that we have seen could have been alternative designs that Nike have done, as I understand it is standard practice for shirt companies to make a few prototypes and then one is chosen.
Or the other images could just be good quality fakes.
Possibly, but I think once it gets to the stage where they are doing the pictures of the kit with the players and the interviews for the website, everything is final.