He needs more mass on his arms in general, not peak in particular.
Other than that his only real problem is stature which is out of his hands. The rest is up to the judges.
He seems intelligent enough to not overdo the chemical side of things since he has a beautiful wife and three beautiful daughters, not to mention a successful business.
My guess is he will stay "small" like Shawn Ray did - bodybuilding for his own purposes and to have a body he loves and leaving the rest up to the judges regardless of the outcome.