I have a feeling GM is going to release another Camaro between the current line and Z28 (coming/showing later).
This new line is still N/A but has racing suspension, breaks and a bit of more power by aggressive tuning, exhaust. This line is meant for road racing for those who want to add F/I to it. Another words, the suspension, breaks are done for you, just add a S/C to it.
That's what I gather it's going to be.
A V6 Turbo as was shown as prototype.