If Rev. 7:4 is to be taken literally, why not verses 5,6,7,8?
I think also this change can happen, with the "we just don't know" or some sort of word soup.
Like most here half my family are JW's. I'm in communication with them regularly, my sibling is up in years and has serious health issues. I think he knows the questionable issues. He's been in that secret international group that discuss all these subjects for decades. That being said, he's got his eyes on the prize during this difficult time.
The other relatives are traveling all over in groups and having a great time. I think it will be discussed in private circles, but they are content with their way of life and have no need to change it. .02