Well no I also felt like that when the F-bods went out of production.
I thought that everything wasn't going to be the same. But then I found out that the Chevrolet Company might bring out a 2008 Camaro. The reason why they are doing that is so that it can compete with the 2005 Mustangs. I also boleive that they are coming out with the Nova or Chevelle one of the two. My point here is that they mostlikely will bring more GT-R's (My favorite japanese vehicle) Sylvia's, Supras and the RX-7's. And if they don't come out right away they most likely will in the future.
Ans if for some weared reason they don't ever come out again it will suck ass...