The Society opened up the gates of heaven again a few months ago when they announced in a Questons from Readers article that the gathering of the anointed is still taking place, and they do not know when it will end. Since this gathering has to end before Armageddon can come according to Watchtower doctrine, this event has, not for the first time in recent years, been postponed again.
Of course, a more cynical person might conclude that this latest change is designed to save them having to explain why the number f partakers never seems to fall much each year, and sometimes rises.