They would cease to exist as JW, plain and simple.
FWIW, the organization in current form cannot withstand that type of change without serious repercussions to its business. It is structured to depend upon control of its membership. In a very real way this control aspect is part of its business model. Any removal of those attributes would cause major disruption, as members would leave for two reasons: 1. Many don't really want to be there anyway, and once the controls are removed, they will walk; 2. Many others would find the changes very disturbing, and leave because the changes themselves would be enough indication the organization is not the "Truth".
Things are slowly reaching a critical mass, however. Change may be forced on the organization to survive for the long term. This will basically be the equivalent of hitting the reset button however, and require serious fallout before things begin to level off. Nothing will be the same for the organization after that, as they will basically be little more than a minor sect, comparable to what happened with the Christadelphians.
d4g