Re-instated?
Did they even admit he didn't have it in the first place?
The way it works is the schools conduct their little internal investigation, and if they think there is a problem they self-report to the NCAA that the kid might be ineligible and then ask for a review and possibly a waiver.
This doesn't have to be made public and if the school has no games during that time, it's possible for no one to find out. It doesn't necessary imply that they expected reinstatement, just that it hasn't happened so that's why he's not going to play.
The last thing your school said on the matter was that it found no NCAA violations.