We know. Mid-engined Corvette rumors have been going around for decades now, since 1959 to be precise. And so far such a Vette hasn't happened. Even the father of the Corvette, Zora Arkus-Duntov, wanted to place the car's engine mid-ship, only to be stopped by the GM board. There've been several mid-engined Corvette concepts over the years, such as the Aerovette in 1976 and the CERV III in 1986, but none have reach production.
But now, reliable sources have told Motor Trend that the next-version of the Corvette ZR1 will be switched to a mid-engine setup. What's more, the C8 Corvette will likely adapt this configuration as well. And in case you didn't know, the C7 almost had a mid-engine design, but that was scrapped due to GM's bankruptcy. Motor Trend also pointed this fact out: Chevrolet recently trademarked the name Zora for the specific use of "motor land vehicles, namely, automobiles." Want more evidence that Chevy is making the design change? The next-gen Camaro will be built on a shortened version of the Cadillac ATS's platform. Compared to the current Camaro, the new model will be quite a bit lighter.
In terms of power-to-weight ratio, especially when talking about a future Z/28, the 2016 Camaro will actually be a threat to the Corvette, something Chevy can't accept, hence the mid-engine C8 switch solution. This would allow the next Vette to remain more exclusive than the Camaro regarding outright performance. But think of it: a mid-engined C8 Zora edition? Now that's something we'd be quite interested to see happen.