Well daddy Schmeichel wasn't exactly a calm player, and he's still regarded as one of the best keepers ever!
Schmeichel Junior has the DNA for it, so he was always going to have natural ability. I don't believe he's going to go as far as his dad did - his attitude will get in the way. He's arrogant because he'll have grown up with special treatment from coaches because he's the son of a legend.