I think Hairston is proper fucked. At this point he's just committed too much dumb to risk keeping around. By his own admission he's a pothead, a liar, and probably a felon. The NCAA will likely do nothing to UNC itself though.
If this stays contained to just PJ, maybe the NCAA will continue their current practice of looking the other way, but several other players have been linked to fats including Henson, Marshall, and McDonald. Granted in two of those cases they were already pros at the time of the proven recorded interaction(IIRC its hard to keep track of all this stuff), but does anyone really believe that they came back to town after making it to the NBA to hang out with some small time hustler and party promoter? Or was that repayment for gifts during their college days?
It will be especially nasty if they can actually link the money Fats was spending to the UNC dental school as is the speculation. That would make this a similar violation to the one that almost got Kentucky the death penalty in the 80s.
If the NCAA was at all consistent in their rulings, this would be a strict liability case and they'd be looking at a lack of institutional control ruling, especially after already being on probation for failure to monitor. UNC was lucky they got away with the academic fraud, but the NCAA can't continue giving them free passes much longer if they want to remain at all relevant as a rules enforcement organization. Who knows though, maybe the NCAA is really intent on driving a multibillion dollar enterprise into the ground by continue the obvious favoritism.
Everyone has to admit that Carheels is such a great nickname though.