Mass exodus.. maybe. I do believe people will start questioning 1914, or have some thoughts about it. Problem is that they're so hooked on what the Governing body says, and having this unquestionable power, they can tell the flock to just listen, be patient, and continue on with how things are going, it's already been done as with the Watchtower articles a few months back. People will wait. With all this time invested in the religion, to even think against it and the teachings is unthinkable. Islandman made a good point that disassociating was easier in 1975, and 1975 pushed peoples hopes to seeing the end of this system of things, but 2014 hasn't. I do believe though that people will fade post 1914, especially those on the edge. The commands to listen and obey can only last for so long before people find out something is wrong.
history has shown that after time of being ruled by men with unquestionable power, people uprise and they fall. Either that or a split happens.