Website chart isn't updated with it yet, when balls get close to release date Motiv puts up a link to surface guide for that ball.
I will say when I pulled my Sky out of the box it was hard to think it wasn't polished, it's a very shiny looking "sanded" finish. Similar to using the Trucut 5000D (think thats the name) pad with water on a ball spinner.
I'll reply in here if I see an official update on how to replicate the finish on the Sky.