I agree with Arthur, I don't think the watchtower will disappear but I do
think they will become more marginalized.. Look for example what happened
to the society in the late 1920's. After significant blunders and
struggles, about 75% of the organization left. What remained was, to use
arthurs words, the 'deeply indoctrinated zealots'. Although they were
smaller in number, they were committed to the organization.
However, with the rise of the internet, I can't help but think that the face
of the watchtower will change, it will become even more marginalized than it
already is. The society knows that they are losing the younger more
technology savvy generation to the world, in fact virtually all the growth the
organization has been experiencing as of late has been poorer countries lacking
significant internet access. We are certainly seeing a erosion taking place that
is seriously affecting their numbers and donations. Frankly, I do kind of
wonder if the organization will experience a complete review of the doctrines
similar to what happened to the worldwide church of god in the mid 1990's.
Rutherford had done this in the late 1920's to show people that the organization
had changed. It was really just a show but it worked to invigorate the
organization and give the appearance that things had really changed.