Good find man, hopefully we are on to something here. Can't wait for all the nitty gritty details when the info is finally released. Even if it is true, I am sure there is more to the story than just pure weight gain.Here's one slide I recall from the C7 introduction:
The Z51 equipment added another 100 lbs or so (larger brakes, larger sway bars, eDiff, dry sump oiling, various extra coolers).
It highlights how quickly many small changes can add up (that list shows a ~210 lbs gain). But in the C7's case, the car is such an improvement that the 100 lb gain is a small price to pay.