The great crowed" including many of the earliest members thereof, will survive into the "new earth." (Survival Into a New Earth p. 185 emphasis mine) TD:
Your quote invites the wt writers to redefine the generation to be, not the anointed of 1914, but the Other Sheep of 1935 instead. With more example of longevity among them**, that would give the GB more breathing room to really come clean about time, if they wanted to.
** John Glenn 95, Za ZA Gabor 99, Jeane Calment 122.