The world/science/technology and society (not THE society) are changing so rapidly. What does everybody think will be WT$ doctrine and belief in 10 or 20 years time? I'm thinking mainly about advances in medicine and cloning, which were always looked upon as being a cut-off point. Most people I talked to used to say Jehovah would step in before mankind had perfected human cloning. Of course then there's the internet and the impact that's had on the world, also the evolution of human morality (e.g. people having more acceptable views about human rights). I feel the WT$ will find that they'll experience shrinkage (in the nicest possible way) and will need to change drastically in order to survive and stop the rot.
My personal wish is that all of these advances really Awaken people in general about the usefulness of religion in their lives.