Nobody has commented on the WT yet, which is what I found most interesting. They claim they are not expecting a "mass conversion" of non-Christians, and apply "the rest of the men" to mean Buddhists, Muslims, Hindus etc. I see this as a form of damage control to be used against people who point out that JWs have had no success in China, India, or hell, any of the Asian continent. For context, here is the verse in Revelation they are referring to:
20 But the rest of the men who were not killed by these plagues did not repent of the works of their hands, so that they should not worship the demons and the idols of gold and silver and copper and stone and wood, which can neither see nor hear nor walk; 21 and they did not repent of their murders nor of their spiritistic practices nor of their fornication nor of their thefts.
As for the accouncement in the KM, I was confused by it too. In the past, they've issued announcements that any publisher who is holding old literature should bring it in to their congregation library, and the Cong then ships it to Bethel where it can be properly disposed of. (They don't want embarrassing "old light" getting into the wrong hands.) This announcement is the exact opposite of that. However, now that you mention the monetary benefits of having publishers slowly trickle these out into the field and get a little extra money for things printed 20 or 30 years ago, it does make some sense.