So pretty much every day we get a "is this over?" post...
This is an ongoing criminal investigation. These things take time. Feds are not going to move forward with charges unless they have a very strong case. The public really has no right to know the details of the case, and in some instances leaks can even impede investigations. We, the public, really have no right to demand a specific pacing to the investigation. This need for constant, instant access to information, the Twitterification of America, is what feeds this sort of sensationalism.