Well I was thinking a similar idea but I was thinking it would be priced around 55k and maybe match up to the Shelby R. I think the Shelby R is Fords version of the 65 Shelby GT350R, and is more of a handling machine, with a extra high revving 302.
I liked the idea of the 2014-2015 Z/28, but with the extra fender well extensions, only a few colors, and the crazy price, I thought they missed the mark. Did it handle great yes, but it was the price of 2 camaros, and more than a corvette!
A 1SS (lat time I looked) base priced was about 37k ( 37k was about the price of a loaded 2SS in the 5th gen). SO I am thinking there is no way they are going to undercut the SS. I figure the 2SS has to start somewhere around 44k, so base of a Z I would ponder 50-55k. Plus I think they make it, since they have everything on hand, it will be one last hurray, for 2 years, and then the 7th gen will come out. Kinda the same way they only has a Z/28 in 14 and 15, and then 6th gen. Just a way to up the hype long enough for them to roll out a new model. Just my 2 cents