I don't think it has to come before 2034, that is the expiration date your organization has set by virtue of comparisons to Noah and the ark. I don't think it will come in my lifetime just as it did not in the lifetime of those who heard Rutherford's talk, "The World Has Ended—Millions Now Living Will Never Die" in 1918.
And there is no reason to believe it will come in my lifetime, especially since tehre are still so many religions saying "The End is Nigh!" Jesus said, at an hour you do not think to be it...but religions keep expecting it any minute and thereby postpone the end. Your religion included.
Seriously, pmj2, the facts regarding the severe lack of penetration into oriental religions is readily available in the 2006 Yearbook of Jehovah's Witnesses. If you can't number crunch them, that is your own lookout.
With regard to the percentages of people who know the primary doctrines of Jehovah's Witnesses (90%), that is based on personal experience. With regard to the percentage of JWs who cannot Scripturally support their own prerequisites for JW baptism (100%), that is also based on personal experience.
AuldSoul