My own worst projection for the Watchtower looks as follows:
For example: On 5 November 2017 the Watchtower declares chapter 11.
Who knows why? Perhaps bad investments, and they run out of funds during their building project upheaval and end up making lots of debt that the faithful can't cover. Who knows? Cats and dogs living together, mass hysteria. Then the scandals keep on coming (sexual abuse, lawsuits etc.) and they do something really dumb like they try another date prediction, which backfires.
The Average publisher level in 2050 is 1.38 million. Very bad but the organization still survives. Come to think of it, its actually not that bad for the Governing Body. The Risk of Ruin of the organization is virtually zero.