This type of speculation is like playing whack-a-mole with unintended consequences. Each solution also carries the seeds of destruction. The WTS must analyze why people join the WTS and why they stay - then find the happy medium that insures the maximum retention, a numbers game, if you will.
The WTS has to maintain the right balance in terms of the size of venue in which to crack the whip. Too large (mega-church) and individual anonymity can lead to missing meetings and a general loosening of personal, peer controls that are so important to the WTS retention model - a slacker's paradise. Too small (CBS) where people feel safe about speaking up, has historically been a potential launching pad for descension and a "break-away" mentality. Thus local KHs of about 70-130 members has been the winning formula for decades.
The implementation of possible changes - blood, FS, shunning, etc., run the risk of making JWs a mainstream religion and then where is the sense of urgency and specialness? They might as well be Protestants and enjoy holidays.
This is from "The Truth vs THE TRUTH," about the long-term effects of the internet on the WTS and what they might do about it:
"Can the Society, or anything like it, have a future in an Internetted world? Perhaps.
"There are several options available to it. The most obvious is to do what Raymond Franz tried to get it to do, a quarter-century ago: admit it was wrong. But this, of course, is the least likely option to be taken. Only one modern American institution has ever admitted that it was fundamentally in error -the Worldwide Church of God, an Adventist church that, influenced by the Witnesses, once referred to its members as "in the Truth," and to everyone else as out of it. During the 1990s, the WCG leadership surveyed its distinctive teachings and announced that they could not be squared with the Bible. The reward for its courage was the loss of 50-60% of its membership. This is an example that the Watchtower Society will be very reluctant to follow.
"It is much more likely to choose one of two other options, roughly the same two that confront all other truth-challenged institutions in the modern world.
"The first option is for the Society to keep trying to isolate its own version of truth from the checkable truth of the Internet. If it does that, the Watchtower movement will become a living fossil, a fellowship confined to people who, like the Amish, are content to remain in a world that pre-dates the net.
"The second option is for the Society to adapt its version of truth, bit by bit, to the fact-gathering capability of the Internet and the free society that the Internet exemplifies.
"This second option is almost certainly the one that will be taken. Like other earthly authorities, the Society has a will to live at almost any cost. It will try to live even if the cost is a quiet coming to terms with its own mistakes. The real question is whether the speed of the Internet will give it time for an orderly evolution. We have seen, in Eastern Europe, how quickly glasnost can be followed by oblivion. The crucial factor may be the morale of the leadership, its ability to live with the same truth that normal people live with, while simultaneously acting as if it were still in possession of its higher truth."
http://www.libertyunbound.com/sites/files/printarchive/Liberty_Magazine_September-October_2003.pdf