I can't say what it is hybrid, integrade, but that is an amazing pattern. It would be fun to breed and see what you get.
I can say with 95% certainly that it is a king/corn cross. The head pattern and the body pattern all lean towards kingsnake. I'd say an aberrant king crossed with corn. As for the adult colours, it's hard to say. I'd hazard a guess that it will be close to mocha brown and creamy tan, but that's only a guess.