I accept your post at face value and assume you just didn't know about being ready for the "AA" level, as I imagine someone was blowing smoke in your ear when they said that. You do indeed have the "fever."
The real decision you have to make is whether your son should go pro now and bypass college. You have to determine if your son is ready AND whether it is the right choice for him to bypass an education that studies show is RARELY completed later. I know something about the sons of other posters here, and they are spot on in their advice on that subject.
After you make your decision, clearly communicate it to the pro scouts. To maximize your son't value, sign a NLI with the best "fit" - this will give you MUCH greater leverage in the draft.
Please consider that many Seniors SLUMP in their last year of high school because they have too much on their plate worrying about signing with a college, grades, leading their team, the draft, and prom.