He's supposedly already 270lbs though. He's going to be a huge player once he gets into S&C at college. I think people are misguided in saying SDE can't be a rush position. Alabama is very multiple in what gaps the linemen play. Our NGs don't always play 0-tech, the SDEs don't always play 5-tech, etc. Alabama has shown that they can change responsibilities to highlight their best rushers depending on the roster. Dareus was our best rusher in 2009 and he played mostly SDE but he played a lot on third down when the responsibilities changed typically for that position.
I think ND would play as weak side edge rusher on 3rd down, they'll also move him around because he's going to be a huge Reggie White-like pass rusher. BUT if I had to figure his likely home, he'll end up being an SDE.