My forecast is that in the Western world, there will be many disallusioned members that just decide to quit, or fade. I think the number will be significant. It will be well past 1914+100 and nothing has happened. It will be inexplicable to try and defend.
The main points from Conventions, Assemblies and Special days will be the same as now; endurance, faith, keep in expectation, etc. If you don't, you better examine yourself. What's wrong with you.
The growth will be experienced only really in the third world and developing countries. In the western countries the membership will be in serious decline and with them the money. The contributions from the third world and developing nations will be insufficient to support the existing organization's infrastructure, so cost cutting measures will be employed. The expensive Brooklyn Heights Real Estate will all be sold-off and the move to the country complete. The tax free capital gains will be the treasure chest.
Direct references in published material and discourses to 1914 will be diminishing if not totally eliminated by then. There will still be an embargo on higher education, but that will be eased-off of publically because of the prevailing circumstances of decline. The education topic will be just internal chit-chat among the BOE when decisions of appointment are being made.
Sadly, there will be countless disappointed and disallusioned members-exmembers, all because of what they were told and read. No excuses or appologies will help, or reverse the situation. Don't bother.
The WTS will be in the process of reinventing itself, as a social organism seeking survival even if it doesn't realize it.
Thank you Fredddy Franz for all of the decades of lunatic writting and practices that put this whole thing into motion.