But the one teaching where they have been consistently ahead of the curve is the importance of Jehovah's name. I'm going to run through a (necessarily selective) timeline of JW events and scholarly publications that demonstrate the phenomenal success of this teaching in the last days.
They are only ahead of the curve if it eventually is proven that the divine name was used throughout the NT, until then they are not ahead of any curve. Neither is this a phenomenal success. JW growth is just a fraction of that of Pentecostals, whom number over 100 million. I thought you were joking with this introduction, but it seems you were serious.
I would like to understand is why you think finding YWHW in a NT fragment would have any significant affect on JWs. I have presented why I think it would make little difference.