It's too new a vehicle for anything to be on the market exclusively for G2 already, and it'll likely be a few months before a product gets through engineering teams. I'll bet the mock-ups are being designed or even fabricated as I type this.
My guess is they will most likely need a doner '17 RL so someone should get in touch with them right away. They are based in Madera, CA. Considering how many styles they had for the G1, I'd bet they will be making one for the G2