There are many definitions of c - it appears as a constant in many different physical equations. Right now, all of these definitions are consistent. If you have a new physics where all these definitions remain consistent and you can still transmit information faster than c, then certainly I have lost the bet. Other cases would be harder to settle - I did state that weird physics along the lines of "this is why photons are slowed down in a vacuum by dark matter, but neutrinos aren't slowed" wouldn't win the bet.
http://www.nature.com/news/2011/110922/full/news.2011.554.html
http://arxiv.org/abs/1109.4897v1
http://usersguidetotheuniverse.com/?p=2169
http://news.ycombinator.com/item?id=3027056
Perhaps the end of the era of the light cone and beginning of the era of the neutrino cone? I'd be curious to see your probability estimates for whether this theory pans out. Or other crackpot hypotheses to explain the results.