What about an Alpine Gruss? Their main body could be light blue, white their horns and back-spine-things could be white. They would live in the same mountains as the regular grusses (plural of gruss?), but at a much higher altitude, where there is always snow. Their white back scales not only provide protection, but they are almost entirely camouflaged in the snow when they roll into a ball.
EDIT: I was just wondering, what about a Noel pet release for Christmas? Obviously, they wouldn't be bought with KS, but it'd be a nice addition. On that note, what happened to the original colors (like Battlefield, Glacial, etc.)? I know I'd love to see some of the retiring pets that have been up there for ages (Bleached Shielupe, Dreamsnare Yonyuu, Clockwork Garudor, etc.) come down and have some new ones in their place
A Biolune and Hollow Yonyuu would make me beyond elated 8D