Same thing happened in the first century. When Christ didn't return soon as he said he would:
Internal power struggles.
Ritualization of gatherings.
Catechism before confirmation.
Schism over doctrine leading eventually to war.
There seems to be something about the transition from 3rd generation to 4th generation.
Around the middle of the first century just about all expectation of Christ return became something that would happen in the distant future.
JW's are at that point now. Each generation that burries the previous generation loses half of their hope.
JW's are at an impasse. They have to repudiate most of their past doctrines and predictions. But they have nothing to replace them with.
2014 will be an interesting milestone.