I am not a fan of questions like "What changes would stabilize JW membership?"
It's like asking, "Was Jesus the son of God or an extraordinary man of faith?"
There is so much more that could be asked about whether he existed at all or was something entirely different from those choices.
Why would we even want a stable JW membership? I suppose then it could be less cult-like and more mainstream. Then get rid of it and let the members find a mainstream church to go to.
The Catholic Church is in a huge decline over its scandals. But they are so huge and banked so much money, that they will somehow, most likely, weather this storm and reinvent themselves after they sift out so many members. Couldn't that be true of Watchtower also?
While I pity the shunned, missing out on family because of a stupid cult, and I wish that shunning would go away, and I would hope their blood ban stops and people stop needlessly dying, I otherwise wish that Watchtower keeps the active members as miserable as ever in their getting their hours in and wasting away weekends at conventions. It might be the only reason people decide to stop being active witnesses.