The RX-7 has been called that for many years even after new models were released.
It just sounds like they are misleading people in that it is better than the RX-7 when it is in fact not. Technology wise maybe, but performance no way. It's like they are "tippie toing" with this thing because they are unsure of what the reaction will be from customers and maybe even reliability concerns with adding a turbo.
I was reading in one of the other RX-7 forums about how a RX-7 owner went in to look at the RX-8 and the salesman tried convincing him how much better the RX-8 is than the RX-7. The guy just ended up walking out laughing.