I predict that WT will continue to print less and less, and the GB's main way of communicating with the flock will be through JW Broadcasting and the like.
It will be an electric church in 5 years. Everything electronic. You can even donate now through JW.ORG for crying out loud. I also predict that they will make a donate button one day that is at the top of their web page instead of a simple note at the bottom of their page you can click on.
More propaganda will be issued out against apostates in the study addition of the WT.
More child abuse lawsuits in the U.S. which the typical JW will ignore but the thinking JW will not.
I predict about the same growth as in the past. Sorry guys & gals, the GB will just change the doctrine to fit whatever they need to. But yes, I do predict it will also churn out more that leave, but I also think it will never bring an end to the org.