Recall that Wilson seemed to have been caught out in a lie on the forged Niger uranium contract (saying he knew the names and dates therein were wrong at a point in time months before he otherwise should have been aware of the existence of that document). Supposedly there has been an FBI investigation into the forged Niger uranium contract. I wonder if this investigation has looked into Wilson's inconsistent statements on this matter. Were I in charge of this investigation I would consider French interests as among the likely suspects for the forger of this document, and consider whether Wilson first learned of this document through French sources.
I should add that while I find it quite interesting that Fitzgerald has recently contacted Wilson, I am pessimistic that Fitzgerald will follow the facts all the way to where ever they may lead because (i) once he clears the senior White House people (if in fact he does) then the conflict of interest that was the rationale for appointing a Special Counsel disappears, and the investigation of any possible crimes by Wilson, CIA people or journalists is likely to simply get folded back into the Justice Department and (ii) if Fitzgerald and his FBI team start focusing on Wilson, they may find themselves butting up against the FBI investigation into the forged Niger uranium contract (if in fact it is still ongoing).
The French angle becomes more plausible if Wilson's financial interests are factored in: his wife prior to Valerie was a French diplomat (serving a function frequently used as a cover by French intelligence) and, along with the French-American politician Pierre Salinger, a registered lobbyist for the President of Gabon, Omar Bongo, who was the chief African ally of the French oil company TotalFinaElf, a major beneficiary of the Oil-for-Food bribes which prior to the Iraq War had a contract with Saddam's regime worth an estimated 12.5 to 27.0 billion barrels of oil reserves.