Umm...why all this talk of disappearing V8s? Assuming these articles contains any truth at all -- may I remind everyone that they are 'protecting' the platform to accept anything from a NA 4-cylinder to a V8?
Plus, GM is nearly ready to release the DI V8s into their trucks and cars...that engine architecture will still be pretty new by the supposed date of this 6thgen Camaro's release...so I don't see how it would disappear.
And if anybody's met the folks on the Camaro team, you can rest-assured they are performance car people to the CORE. If a meteor struck the Earth and all V8 engines disappeared, these guys would still manage to make a V6 Camaro melt your face off.
I think you're working yourselves into a frenzy over little to nothing.