I think the process of ignoring it, as dear NewYork44m says above, has started. First they consigned it to the Appendix of the "Bible Teach" book, and then they proceeded to simply mention as a fact that Jesus began his reign then, or that it marked the start of the "time of the end".
Most younger JW's have no idea how 1914 is arrived at, nor do they care.
When it slips away as 1874, 1925 and then 1975 did the WT/GB will breathe a sigh of relief, because it is their Achilles Heel.
No 1914= no 1919= No choosing of an FDS = today's FDS are self appointed Charlatans of the first order.