IMO, no matter which way you slice it, "heritage", "retro-inspired",etc are all euphamisms for what the car really is...retro. The retro fad has been around for several years now and has been pretty successful. I would categorize cars like VW Beetle, PT Crusier, HHR, Mustang, etc as obvious retro stlyled as well. I mean how old is the PT Crusier? Almost 10 years I think.
My point is, how long will it last? When the new Camaro comes out, will the fad be fading or worse, gone. Honestly, this concept should have come out 3 years ago at the end of the last generation Camaro. We should be driving this car now and it should be ready for a redesign 3-4 years from now. I guess I'm a little pessimistic because I know how long it takes GM to refresh products. They seem to always design concept cars to compete with current production vehicles rather than future vehicles.
I still think the concept is beautiful and, yes, I will buy one when they finally come out. However, it is clearly not an evolved design from the last gen as all the other generations have been. It's more like pushing the reset button. Will the next generation look similar to a 70-73?