Good post half banana.
The "pressure on numbers" has started and will build. The wackier and harsher they get, more and more will wake up.
More will leave, more will fly under the radar and seeing it for the crock of crap it all is will not shun their family like they are expected to. Imagine you are a parent with young teenage kids seeing the "don't pick up the phone/scowl at your kid when she is being disfellowshipped" video. The deluded diehards will continue but they will increasingly be the mentally and emotionally defective. More will delay their kids getting baptised.
Others will become more apathetic and depressed. The congregations - especially in the western world - will hollow out and contract from the inside. I just hope the slow drip drip will become a steady stream.
I don't see a sudden destructive force but I do see JW-ism stagnating/withering and those wanting to escape will have an increasingly good support structure to help them.