In the words of non else, but Jesus himself "...Truly I say to YOU that this generation will by no means pass away until all these things occur"
"The Generation" has been a subject of doctrinal changes and wide speculations, but the latest explanation handed down by FDS, pardon by Jehovah, finally makes sense:
Jesus evidently meant that This Generation, in modern days comprised of two overlapping generations (GenX and GenY), will by no means pass away before the ultimate demise of the WTBS.
For once, Mother may have been right.
There you have it. Please end the speculation.