Is he even good enough to play at this school? None of those questions matter right now if he isn't good enough to play there. Will he need to rely on decommits/draft, will he have to commit his sophomore year... those questions imply that he is somebody that can definitely play there.
I would assume if he were good enough to play at a school of this caliber, people would be telling you already and he would be getting approached by top travel programs to come play with them. I would guess that this information is new to you which would tell me he isn't really around other high level travel teams or ballplayers where conversations about college baseball and recruiting are happening daily.
If your son is a good ballplayer what you need to do is research the top travel teams in your area and have him start trying out for some. That is the only thing you need to do right now. If he can't make some of the better more competitive travel programs then he'll never make a P5 roster.