Sorry it took me so long to reply...
I think the GTO will be a classic, but it'll take longer than 10 years. This is part of the reason I decided to go ahead and trade mine it. Possibly 20-30 years from now it will be of very significant value since Pontiac is out of business and the GTO is the last 2 door V8 car that they made, and there was never a V6 version of the car. That and the fact that it was so underappreciated when it was being made kept production numbers down. This will hurt the current Camaro as a collector car. There are so many of those cars made and sold, and the fact that there is such a large aftermarket offering for it, it will be hard to find an unmodified Camaro in the future. The hard part for restorers will be finding parts that far into the future.