He’s not going to be drafted in the first or second rounds, despite whatever he’s heard from people, with not necessarily his best interests at heart.
If it were me, I would come back to school, be a mentor and leader, this team has enough size and talent to compete with anyone, he would be viewed as a leader to the younger kids. Help lead the team to a Sweet 16 or better, which is definitely doable, provided they have one??? Then he would be viewed as someone that has definitely recovered 100%, that’s a leader and mentor on the court, and his game is on the uptick. Get drafted in the 1st round, then teams have something invested in you, and you’re much likely to have a career in the NBA, as opposed to being shipped off to a minor league location, or worse, overseas.
That’s what I would do, not knowing anything on a personal level with the kid, he may be starving to death for all I know, and needs anything he can get.