I think that it's possible that they're getting ready to issue a new end time date insinuation like they did with 1975. Now I know what some of you are probably thinking: why would they be so stupid as to repeat such a mistake, knowing what happened in 1975? Well here're two reasons why I think they could do it:
First, it's important to remember that they are deluded. They really believe that the end is coming within "this generation" so it's easy for them to tell themselves that even if they were wrong in the past they now have a better handle on the timeline. Setting a specific target date would also inspire fear and urgency in JWs, scaring sleeping fence-sitters and unbaptized publishers as well as ignorant members of the public into becoming full-fledged loyal, baptized members of the religion. It will boost their membership.
Second, they can rationalize their claim and give it credence by saying that they're not really setting a date for the end. This is what I believe they can do: They can conduct a global survey of all congregations to determine the youngest surviving member of group 2 of the overlapping generation. They can then use this person's current age and an estimated maximum life-expectancy + a few years for safety, to determine a maximum end date for "this generation". Then they can publish in a Watchtower that "this generation" is projected to continue up to 20xx for the absolute latest, followed by something like:
"Can we conclude then that this wicked system will end in 20xx? No, we cannot make such specific predictions because Jesus clearly said no one knows the day or the hour. But he did tell us the generation. That generation's end point - this generation's end point - is clearly discernible and fast approaching! Jesus said "this generation will not pass away until all these things occur"! Evidently, the end of this wicked system must come some time before 20xx. We do not know the day or the hour but we do know the deadline!"
And so this line of reasoning can implant the date 20xx in the minds of JWs creating as much hype over that date as existed regarding the 1975 date. And they can rationalize away any criticisms of their claims based on Jesus' statement about no one knowing the day, by saying that they're not claiming to know the day, that the end can come anytime before 20xx - only it must come before then.
I can totally see this happening.