In our last Local Needs there was some information about the new LDC arrangement, and a new statement that the GB want congregations to keep their KHalls for one year more than usual before a refit or new build, and this will save the society $80 million per year. That was the figure read out, I'm presuming from a BOE letter.
To facilitate this the congregation was encouraged to take more care of the KHall and make sure all rudimentary maintenance is carried out promptly (examples given were decoration, plumbing, electrics) by the local brothers.
Ties in with The Searcher's conclusion in the OP - It all belongs to the Society now.
This looks to be the result of the famous July 2013 WT changes when it was shown that the F&DS have not yet been appointed over all Christs belongings, meaning that the KHalls did not, in fact, belong to the GB as previously taught. As a result, maybe some congregations thought the KHalls now belonged to them. This latest WT has stamped on that idea!
What I wonder is, if a KHall or bethel is dedicated to Jehovah, who has the right to undedicate it and sell it?
When they say "Therefore, it cannot rightly be said to belong to any individual or congregation", why does this not also include "or any organisation"?
They are greedy and manipulative.
(Edit to add: I see Bobcat had the same thought!)