I don't think it has much of a practical chance. You should see the reluctance of academic professional organizations to deal with this question. (And they have, at least in theory, a higher ethical stake in the matter.) I doubt very much you're going to see a competitive industry come together to solve the problem.
But Chatterbox thinks it's within Alice Mayhew's powers to prove Mallon wrong.
[Update, Jan. 29: Chatterbox participated in a panel discussion about l'affaireAmbrose-Goodwin on the Jan. 28 PBS News Hour with Jim Lehrer. The other panelists were professors of American history: Eric Foner of Columbia and Jerah Johnson of the University of New Orleans.Click here for a transcript.]