I think the scripture mentioning "the two witnesses, who were killed, and then miraculously come back to life" (not an exact quote) was supposed to have fit into 1914-1919.
By now I wouldn't even be surprised if they say JW didn't preach = 2 dead witnesses fulfilled and at the same time claim they did preach = not in Babylonian captivity.
As long as the two contradicting statements are not in the same paragraph the dubs won't notice anyway...
:-D