I don't see the need for it, to be honest. They get excellent weight distribution with the current front engine + transaxle layout. The low profile OHV engine allows them sleek lines and a low hood without resorting to mid engined complications. And the performance of the current model is already on par with cars costing 50-100% more.
The big knocks against the 'vette in the autorag eyes are:
1) It's a Chevy.
2) Interior materials not on par with cars that cost a lot more (go figure)
Moving the engine to where god intended it to go won't change those.
My suspicion, not mentioned in the article linked, is something entirely different....Chevy is moving the engine mid-ships for another reason: To better differentiate between the Corvette and upcoming Camaro. For decades the Corvette's main advantage over the Camaro was a few extra ponies from the same engines, an independent rear instead of a live axle, and 200 or so fewer pounds. I suspect those distinctions aren't seen as enough to justify the premium the general wants to charge for the 'vette over the Camaro. Which in turns means that the new mid-engined Corvette is creeping upmarket.
For my own interest, I'd love another mid-engined, accessible sports car from a major manufacturer. My MR2 has 184k on it now and will probably only last another 100k or so. With Toyota having abandoned sports cars in their entirety, I'd be happy to buy American again, in 2013 or so when these things start showing up used in my price range
My longer than intended $0.02,
-Stephen M