Look closely and use a bit of imagination and it's obvious that Nissan is upgrading the GT-R's front and rear fascias for the 2012 model year.
The changes are slight, but they deserve noting. Particularly the new rear bumper, integrated diffuser and sharper flares aft of the rear wheels. The front grille has been revised with a more horizontal opening than the previous model and with camo covering the side intakes, it's obvious that the bumper is going to be benefit from a slight restyling.
Our spies caught both a standard GT-R and its SpecV sibling at the Nurburgring, so it appears that these changes will carry over to both models. Expect an official reveal sometime this fall.