The site http://www.jwic.com/stat.htm is very informative and I hope that it is updated soon after all of the official statistics are released.
The cautionary note is that the WTBTS has in the past suffered serious, multi-year losses, mostly after a failed Big A prediction, yet still managed to rebound.
But this time things are different. The WTBTS is struggling with a multi-year decline in baptisms in spite of not having any obvious prediction failures. The last big re-adjustment was the 1995 redefinition of the generation issue and any JW who would have left because of that is already gone.
Also, the rise of the Internet and the resulting increase in the free flow of information is deadly to any cult's recruitment efforts. This is a trend that cannot be stopped. And even without the Internet, there is much greater communication among most people (better postal service, much less expensive long distance telephone service, and more frequent personal travel) and so most people are not as isolated as they were only a decade ago.
The WTBTS did see significant gains in the former Soviet republics after the dissolution of the Soviet Union, but these regions have since lost their big growth rates. There is still some net growth in Central America, South America, and Africa and this will continue for another decade. But that is no ending of the WTBTS troubles, as these regions do not contribute enough cash as did the developed countries.
What can the WTBTS do to stop the decline?
1. Try a new prediction for the Big A. I doubt it. They have been burned every time in the past on this, and I think that even they are embarrassed to mention predictive chronology lest it bring to mind all of their failures. Ever since Fred Franz went to his reward in 1992, the WTBTS references to chronology have grown fewer and less definitely stated. The entire 1914 date has played itself out and must be an annoyance to the more youthful members of the WTBTS elite. It may be many years until it is officially dropped, but the "silent dropping" of it has already started and I doubt if that date will see any official references years before the 2014 publications appear (if they do appear).
2. Try more liberalization. In the past ten years, we have seen the WTBTS drop its official condemnation of college education, alternative service, voting, and a few blood issues. While some of these changes were done to appease various government agencies for better tax and subsidy terms, the others just might have been attempts to stem membership losses. But I doubt if any of the liberalization efforts were intended to draw in new converts directly. And I don't see how this could change in the future.
3. Dropping shunning practices. This could result in a lot of exJWs returning to the fold, at least temporarily. But it's not going to get many new recruits coming in the door. And the WTBTS is unlikely to give up one of it's two best retention tools, the other being the fear of an immanent Big A Real Soon Now.
4. Starting some real humanitarian and charity efforts including locally organized work. Something like this just might be effective in stemming the loss in developed countries. But it has the drawbacks of draining net cash flow to Brooklyn and of allowing more autonomy at the local and circuit level. The WTBTS elite is not going to permit either of these until it is truly desperate.
5. Try a media blitz. This could be effective in the short ot medium term. But no doubt the WTBTS elite are going to stay clear of this as it costs real money and would also open them up to criticism that they are just money grabbing televangists. Also, as long as they are getting a billion hours each year in free labor, why spend a penny on broadcasts?
6. Try a more ecumenical approach. This is a last ditch option for the WTBTS. They will eventually go for this, but not until all other approaches have failed. When it finally comes, we wil have had years of forewarning od doctrinal changes as they back out of their old "Satan's worldwide empire of false religion" mantra.
7. Try more vigorous performance monitoring of the district and circuit overseers. It is possible that more threats of punishment for non-performance may, at least for a while, motivate some DOs/COs and get others to retire. A CO could be told "Get the numbers up this quarter or you'll be cleaning toliets at Bethel.