Why not make a Z28 for the 5Gen? Use the LS7 before it fades into oblivion! Make a car that declares we at GM love our street/track enthusiast! A car that will be remembered for the fact that GM could and they did!
I know the ZL1 is the "it" car, but F**d has the Gt500 and the Boss. Why you ask? Two different buyers, the I want it all Grand Touring customer and the corner carver/track customer. The Z28 would/could be a parts binner. It would market itself no doubt.
Just build it!!!