Interesting posting, metatron:
Twenty years ago I heard the figure that 50% of young members left the organization. I did not realize that it had increased that amount (80%) in the interim years. The guage of how well religious organizations are doing has traditionally been the number of young people who supported it. These figures would indicate a real serious problem for the Watchtower Society.
This trend is seen in other churches as well. But in some cases, they see a return of families as these young people get married and have children of their own. Except in rare cases, I doubt this would happen in the Watchtower Society. "Once burned, always burned" would seem to prevail.