So I emailed Greddy to get an idea on when/what to expect from them for the Z. I thought I would share the reply I got back in case anyone was interested on the status....
Hello and thank you for your interest in GReddy products.
We prototyped a few different models. But the main ones will probably be the SE and Racing Ti-C styles. We have them in production now, so we are just awaiting shipping and arrival. Once they arrive we will definitely update our "New Product Additions" list on the homepage.
Greddy - Founded and Driven by Racers
Thanks