ZR1 will be built for at least 3 years.
This was the problem I had with Dodge. Don't play the limited edition game. You're a brand for the masses. If the masses want your stuff, sell it to them.
ZR1s will be 150-160k starting msrp and will be available in that price come year 2 of production.
And remember, there is a C9 Corvette generation that will follow in 2029/30