It depends what role he is in.
I'm not going to pretend, i've been a monster homer for O'reilly all year, and I think that he is player that will end somewhere in the 40-60 range, depending on his role.
He MUST put on some weight, because when he does he has the tools to become a monster down along the boards. Admitedly, his shooting isn't so good, but I actually think his passing is outstanding for this point in his development.
Admittedly, he's gotta get some better linemates, (as in people that can at least recieve a pass) but when he does, I think he's a 40 pt. producer right now. Remember, he was putting up good numbers w/Galliardi on his line....
However, as he get's stronger along the boards, i think that he has a lot of the same skillset Staz does, just to a lesser degree. He's extremley raw in the offensive zone. When he's not playing off the rush, he actually looks a little lost....As he learns to control the play, get some better linemates, and get some time on the PP, I could see him being a 20-40 guy.