While not saying that Scooter Libby is out of trouble now, I think that Bob Woodward's recent bombshell is specifically meant to weaken the case against Libby because extreme damage will be done to the MSM if Libby's trial, or even the discovery phase of it, goes forward.
Fitz now has two options, put up or shut up. He's said that a second Grand Jury will be convened--how shabby and sloppy. He will have to bring all these good black women up to speed about the prior GJ and then try to make some more progress in a deepening quagmire. My bet is that Woodward won't be harrassed by Fitz which will make the faulty conclusions of the first GJ pretty much useless. Eventually, Libby's lawyers will accept a wristslap for their client, who did a stupid thing (probably in the mistaken belief that he was shielding the WH).
So here's a guy, out of a job, who now has to spend years in court and possibly do jail time because a "Special Prosecutor" PERCEIVED what Libby said was a lie.