It wouldn't surprise me if someone was working on a leucistic corn snake project. For the most part there aren't too many Co-Dominant Corn Snake morphs out there, so most question if its even possible. Which imo sucks, because I too would love to have a BEL corn snake.
The Blizzards are basically just a snow (albino + Anery), but with a different type of anery that produces whiter looking ones, aka blizzards.