Obviously, there is no answer to this, I just think it's an interesting ??. My personal opinion is that within 10 years, the WTS will be a shell of it's current (and especially former) self. It may not even take that long.
We know that growth in the 'advanced' nations is either negative or at a standstill. How long until the REAL information about the WT gets to the developing countries? The fact is that most of the $$ to support the growth has always come from the developed nations. As that starts to dry up, it doesn't really matter how many converts they make in 3rd world countries, without that heavy financial support from the 'big boys', they won't be able to afford to do business.
In the past, in developed nations, many of the 'newly baptized' have been children who have been raised in the truth. Now that those kids spend so much time on the internet, how long until that is no longer a source of membership? I think the Internet, the UN, sex abuse scandals - all of the last few years, have already taken a heavy toll. Given another decade, how much more severe will the damage be?
Anyone have any thoughts on this?