The Internet and modern Cell 'phones are the problems for the Org. The younger generations brought up with both are savvy about their use, and do not have the fear of coming across dodgy stuff, be it Porn or anti-JW thoughts.
Also, because they communicate mainly by secure platforms on their 'phones that Elders can not spy on, they can be a lot more open about their feelings, doubts etc.
The JW Org is without doubt moribund, and the atrophy of the Org will no doubt accelerate from now on, I certainly hope so.
I think anyone under the age of about 45 is now likely to wake up and leave, there will be a few thoroughly indoctrinated younger ones who stay, but other younger ones that stay will be PIMO.
It will not just be an uphill climb for the Org, it will be like when I was young, and certain 1 in 3 Hills could not be climbed at all by the automobiles of the day. The Org will need some new strategies , because if they become just Congregations of the Elderly, the end of the Org is a mere decade or two away.