The Snow cat is a cross between a Silver Persian and a Somali. The Somali is an Abyssinian cat with long hair. see the Somali cat. Persian cats are either bred to an extremely flat face (the Persian that competes at cat shows) or are a Traditional Doll Face Persian (click here too see a fantastic white Doll Face Persian called Yeri). People prefer the traditional look as far as I can tell or at least the poll on this page says that.
An example of a Silver Persian cat of the traditional kind can be seen here: Chinchilla Persian cat. We know what the parents of the Alaskan Snow cat might look like (if you’ve clicked on the links), so we might be able to guess what this experimental breed might look like. The target is a Somali type cat with the heavy (the CFA Persian breed standard calls it “massive”) rounded head and heavier bones of the Ultra Persian.