That is one source that Novak would not protect. It is much more likely that a low-level functionary in the administration -- maybe even a non-political appointee let Washington's worst-kept secret slip.
Hmm, Wilson as the leaker, well I did read that in an article posted here. Don't recall the author, though. It wasn't Novak, nor a personal opinion piece. Sorry I'm so absent-minded about this. I recall goggling at the monitor when I read it, though, and thinking various unprintable phrases regarding Wilson.