Keep the old date and your religion is basically like an expiration date on your milk. It's probably good for a little longer, but it's going to go bad soon.
The expiration date of 1914 may be longer than you think. The wt's last hope may be:
1914 > Noah's 120 years > 2034
It will give them another 18 years and it fits the doctrine of the overlapping-generation.
I don't believe that, for the coming years, many will buy their incoherent crap any longer as many eyes will be opened (for instance, think of what the ARC will trigger even more). Let alone for another 18 years!!! But as Hitler's bunker (!) shows, there will always be loyalists (!) who believe they will betray Jah himself if they ever leave his imperfect, yet approved and only earthly organization.
We will see what happens...but if they already didn't want to change 1914 into 1957 because the majority of the GB didn't want to lose face and authority (that change to 1957 was proposed by Schroeder, Klein, and Suiter in 1980 - see CoC), then why should they give it up now while Stephen Lett makes bold statements like these?:
https://www.youtube.com/watch?v=zJ6405yjZfo