It would be interesting to hear if he is playing anywhere, if not he just lost a year of eligibility the way I understand it, plus another year removed from football.
If OSU was the delay factor he should sue them, IMO, even though I deplore all the frivolous lawsuits that cost us a lot of money. In Australia they have the "loser pays" law, which says if you sue someone and lose you pay the lawyers for both sides, it does away with a lot of the nuisance ones.
Of course the lawyers are in control of everything here, so there is no chance in hell of getting it by the lawyers here.