I think they will continue to make slow moves towards more mainstream Christianity, with many small changes and perhaps the occasional big change. This includes easing up on the invasive attitude and letting JWs enjoy a more normal social life.
Bigger changes will take longer. I wonder if they will eventually allow JWs to observe holidays as a "conscience matter." They will eventually drop the blood policy, if they can find a way to do it without triggering a mass of lawsuits. And, if things work out, they can finally drop the "end is closer than you think" attitude that tends to alienate more people than it attracts.