Either a federal investigation into their extortion tactics of rank and file congregations / or misuse of billions of $$$$ of funds might bring them down. A federal investigation of child abuse crimes / getting access ( finally ) to the database file which holds 23,000 names of JW pedophiles - then exposing that the WT Society appointed thousands high ranking JW men into positions of power all the while knowing those names were among the 23,000 on the database file list. That would prove intent and knowing collusion.
Or, as some have stated the " no blood transfusion " JW deaths, especially of minor children might wake up the government to investigate abuses of JW members within the cult with thousands of them dying from refusing blood transfusions. I'm thinking it may be any of those 3 things that might eventually bring WT Society down :
1. WT Society extortion of people financially
2. Aiding and abetting church leaders willfully hiding child molesters
3. Forcing, coercing , or pressuring members to refuse blood transfusions resulting in thousands of needless deaths.
Any of these 3 things or perhaps a combination of them may really hasten WT Society's demise