To clarify, 1914 has NOT been abandoned. The current WT teaching is that Jesus was enthroned as King in 1914 in the heavens, and that is when he cast Satan out of heaven.
To add a little more info to that: 1914 has not been abandoned as the year Jesus was enthroned as King -- however the understanding of the "generation" that will not pass away" (Matt 24:34) has changed significantly.
This generation changed through the years from those old enough in 1914 to recognize the events indicating Jesus' enthronment (14 yrs old or more), and gradually changed to "born in 1914". Obviously those people have passed away -- they are all dead. Two years ago, the WTS changed the understanding of that "generation" to be multiple generations (of annointed persons) that overlapped the period of time from Jesus' enthronement until the start of the Great Tribulation. (Yeah, confusing & ridiculous).
Thus, their example the life of Fred Franz (an adult in 1914 but dies before GT) overlaps with the life of (your pick, let's say Geoff Jackson, new GB member) who was not even born until the 1950s but whose life overlaps that of FFranz, and thus the GT should begin within Jackson's lifetime (which could be another 30 years). Of course, there are much younger persons who claim to be of the "annointed" and so the 30 year window could easily be said to be 40 or 50 years.
Also --
For decades they taught that the choosing of the annointed was "sealed" (closed) in 1935 when they recognized the "other sheep" group. Any few new annointed ones after 1935 were thought to be "replacements" of any who were unfaithful. However in recent years there have been 1000s of "new annointed" ones, so this doctrine that the number was sealed or closed is now abandoned. Although, they warn that many of these new partakers are likely still caught up in false religious ideas (communion) or are mentally ill (and thus not REALLY of the annointed). But who is to say which of them are "real" or mentally ill?
Interestingly, NONE of the current GB were even born before 1935 (Herd is close, but still after 1935, I think), let alone were they partaking of the bread/wine by that date. Thus one might wonder if they are caught up in their former false religious ideas? Or, mentally ill?
Doc