Two things:
I don't think that game of college basketball will change like many of the analyst's are predicting. I think you will see more programs start to operate on the up and up. You will still have some coaches try wade into the cesspool, but it will take a while to get back to the point it was yesterday.
I do think the NCAA will come down hard on the programs that are implicated. It may be slow because of the initial fallout, see revenue from March Madness, however I believe that the penalties will be swift. One thing different in this case is the Feds are involved, the Feds can operate with search warrants, wire taps, sealed testimony, informants, etc. They can do things that the NCAA can only dream of. In the past the NCAA has always deferred to the schools to impose penalties and then the NCAA would act if those penalties weren't harsh enough. If the schools don't get out in front of this quickly, I have a feeling the NCAA will hammer programs. But then there is always UNC.