One thing I find interesting about the abundance of overnight Plame stories (here, here, here, and here are a few examples) is that not one story mentions Robert Novak except in passing while providing background on the case.
Novak has not “discovered” any additional notes relevant to the case, nor has he been recalled to testify.
I take it then that Patrick Fitzgerald is satisfied that Novak has completely cooperated with the investigation and has no additional information to offer. Novak spilled his guts, and Fitzgerald knows (and has known for some time now) the identity of the two original “senior administration officials” who made the leak in July 2003. The case has snowballed beyond the original crime.