When the baby boomers (born 1946-1964) are all in retirement and heading into nursing homes, which oddly enough happens to occur right in the leadup to 2034, it will be the end of a JW era. I'm sure the organization will go on, but it will change. They way I reckon it, there have been four major generations of JW's.
1. The ones from "the lost generation" that saw the pre-Rutheford days, and were old and dying during the institution of "organization". 2. Those of "the greatest generation", born during the great depression, seeing WWII, and reaching retirement during the 1975 debacle into the 1980's reorganization of the organization. 3. The "baby boomers", who lived their most productive years during the 1970-1995 glory days of end time prophecy are starting to retire now. So I think we're due for the next big organizational shift in the next 10-20 years, regardless of outside influences such as the internet. I'm not sure what to call the 4th generation, but I think they will get left holding the bag, only to find it's empty. The prophets of gen 2 are long gone, and nobody has lifted up the flag to take their place.