Before my disfellowshipping was announced and my family were still speaking to me i told them all "things will change, they have to if this religion is to continue". They all said "no, no, the bible doesn't change" they didn't see the distinction.
Im guessing the GB are pondering how they can scrap the 1914 teaching while keeping their power. They may play the humble card. "The GB humbly admits that they were wrong in their interpretation" but quickly come out with a new prophecy which will create a happy buzz in the congregations.
It's by belief that when this GB are all dead, the new younger GB will scrap A LOT of the controversial rules and blame the deaths and broken families on the old GB.