Could the big change be more PIMO JWs who stick around for fellowship and a tribe? Fewer "true believers" ? Will JWs become more like rank-and-file Catholics . . .
I'm convinced there are a lot of JWs as you describe here. There are many who have doubts about the "nearness" of Armageddon which is quite evident by how they are living. There are no JWs making huge sacrifices to pioneer and "save" people. Over 50% of the JW families which whom we are acquainted are taking cruises and international vacations -- quite a few to Europe vs Caribbean locations, which are much less expensive and are "easy" flights (3 hrs vs 8-10 hrs).
It's 10 years ago, but I recall two 40-something JW elders discussing how they were strategizing their 401(k) retirement plans. Clearly not thinking that Armageddon is "very, very near" nor fearing that money will be "thrown into the streets". (I hear that one of them is now "inactive". I don't know if he is a "stumbled believer" or if he has become "awakened" (not to be confused with "woke") of all the JW BS.
One of my longtime closest JW friends is 100% "mentally out" but still is dogmatic about being "physically in" (PIMO) as the best course of action. He thinks JW doctrine is total BS, but that JWs are the best group of people to have as friends and as a "network".