Many will view it as persecution, and will discount the evidence. There will be some who will be shocked that this evil exists in their ranks, but still stay loyal, the old "where else can we go?" routine.
There will be some, probably relatively few, who will have known of some of these instances, and have been "waiting on Jehovah" to fix the problem. They may have thought that it was just an isolated incident, and will be horrified that it is so widespread, and the policies of the watchtower have allowed it to flourish. For those it may lead to life changing questions, and hopefully, answers.
The public image of the watchtower, on the other hand, will have changed forever. They will have lost their image as "such sincere people". They will get questions at the doors that they will be unable to answer. Even for Witnesses who never see the Dateline program, they will be confronted with these issues.
They will no longer be able to make the claim that they are so different from other religions. They are no better. At least other religions are owning up to it, and taking responsibility, at least in part. The watchtower won't even comment on it. What arrogant, ignorant fools. They think they are above it all. Nope. They are about to be taught a valuable lesson, and be publically humiliated.
Does "conduct unbecoming a Christian" sound familiar? This time the details will be available for all the world to see.
My greatest hope is that it will save some children from the same abuse. It may not solve the problem, but it is certainly a step in the right direction. But it is only the beginning.
cb