this could really apply to absolutely anything the JWs say from now on, and going back the things they have said
This is true, I have not really thought about it in the terms you are putting it here. I also was raised a JW, pioneered, went to Bethel, and served as an elder for decades so we have a similiar experience, at least in these ways.
Since I am also PIMO, I am just waiting to see how this new lite sinks in to the R&F. I am very curious to see the results of this major change not just the no time reporting but also the things you mentioned. The "Jehovah will do what is right" in regards to resurrections and last minute repentance is even more major in my opinion. Going to be fascinating going forward.