The Society is a chronological based religion. It is not like the Catholic Church who have existed for 2,000 years.
The Catholics teach that you go to heaven when you die, so all you wait for is your own demise.
The Society teaches that "very soon" there will be an end to wickedness since 1879.
In my mind there are two dates which get more and more embarassing for the Society as the years and decades go by...
1914 - Jesus is ruling the Kingdom
How effective is this kingdom of 91 years? What has it done?
1935 - Last year of anointed ones being chosen
A person born in this year would be 71 today. If you were 20 and had the heavenly calling then, you would be at least 90.
So, with these two dates in mind, you cannot get rid of them, they will be the cause of the WT demise.