Many of you have wishful thinking, but in reality, JWs are not going anywhere. They will be here, but transformed from the religion we had left. Many predicted WT collapse 40 years ago, but suckers into the organization are born in every minute. WT may even prefer smaller organization of loyal followers over larger pack of followers with 20 million people which would be much harder to maintain, indoctrinate, and control. GB would be still well fed and happy with 8 million followers.
One of the issue is that religious organizations tends to outlive its founders for decades and centuries. WT can last very, very long time.