The real question (and the only one that matters) is a 2-parter:
What can actually be PROVED, and do "they" WANT to prove it?
The interjection of the Feds into the whole fiasco, in the form if the FBI, is the "wild card" in all of this. As long as "they" referred only to the NCAA, the outcome was likely to be as much an expression of that particular time and place's political and financial considerations as any sort of "fair and balanced judgment". The outcome could be fairly arbitrary.
With the FBI's resources and access, not to mention their OWN priorities, agendas, politics and competing powers and forces within, there is less telling than ever how long it will take, how far it will go, and what the eventual outcome may be. We do know this: they can go farther, deeper in following the money and digging up what's been hidden, if they want to; they have investigative AND coercive powers that the NCAA can't even begin to touch. Moreover, when they're done, they can levy infinitely greater sanctions and punishments--which in turn goes a long was towards ferreting out the truth in the first place.
IF they choose to apply and/or pursue either in the first place.