Oh, dear. Evidently the Watch Tower Society's new understanding contradicts a previous teaching.
"When Jesus used 'generation' for the last time, he was on the Mount of Olives with four apostles. (Mark 13:3) Those men, who were not yet anointed with spirit nor part of a Christian congregation, certainly did not constitute either a 'generation' or a race of people." (Watchtower 01. Nov. 1995, pp. 30, 31)
"What did Jesus mean by 'generation,' both in his day and in ours? Many scriptures confirm that Jesus did not use 'generation' with regard to some small or distinct group, meaning only the Jewish leaders or only his loyal disciples." (Watchtower 01. June 1997, p.28)
Evidently, the Watch Tower Society is full of manure...