If he loses most fans will claim the hype train derailed. His hype being his doing of course, constantly praising himself as the ruler of MMA while everyone else is on their knees worshipping him, his constant downplaying of his fellow fighters, calling them pussies, roided, chicken, slow, predictable, etc...etc...
I believe some of his fans will also turn on him, his mystic is so absurd that even his fellow irishman, his friends, and people close to him will be affected by this in some way or another. The guy is the biggest attention whore in the sport, plus he is very successful. When he loses people will say the hype train got derailed.