Uhhhh.... hope things work out for your son. If he applied to Univ. of South Carolina and things don't work out with the academy, then you should know they have excellent xROTC units. I'm confident that with 4 noms he should do well with regard to an appointment. It ain't over til it's over and you have almost another month to wait it out.
EDIT: I meant to add that the most recent post on this thread, prior to yours, is 5 years old. You might want to pick a different thread next time. I think the others hear have left the building.