If it truly is a deal aimed "global" (mentioned in news article on plea) then I doubt you are going to get 4 jurisdictions to agree without serious jail time.

There might be a weak case or two among them, but several women have come forward and some of those were reported immediately. It would seem to be a good base to build on. Sharper could ply them with money, but the sheer number makes that more difficult and unlike someone committed to a livelihood provided by Sharper, they don't have to agree to anything to stay in his good graces.