How about technology? Do they believe humans will continue to progress technologically? True, the vast majority of those who could design cars, homes, refrigeration units, aircraft and even extra-terrestrial communications and craft would be killed in the Big-A, over a thousand years or so they could develop schools of higher learning and figure out all that NASA stuff left in all those empty buildings.
Since some JWs are planning to move into the homes of the "toasties" (those who will be killed by Jehovah), it doesn't sound like they're going to live under trees or in caves. So when the fireworks are over, will mankind progress or will vegetation overrun the cities? In all the pictures, everyone's wearing clothing and playing musical instruments and gathering figs and other organically grown foods.
If I were going to live in a perfect environment, in bliss, I always figured there would be a way for me to have a food replicator that would, at my command, generate an old Hot Shoppes (circa 1968) menu, including a Mighty Mo, chicken noodle soup and French-fried onion rings. But that would take technology. I also never see people using computers in those WT pictures.
The question is whether JWs see life on Paradise Earth as a rejection of all technology or as an opportunity to achieve all those things they were denied leading up to life everlasting. Oh, and that reminds me. Do they conceive of anyone else being out there in the trillions of stars -- perhaps other creations of Jehovah -- or are they pretty much the sum of humanity?