Most of the Watchtower construction over the past 30 or so years focused on easy conversion to other uses, usually high end apartments. So, I am sure they are doing the same thing with the new wave of kingdom halls. Make they easy to convert to other uses - primarily commercial or professional space (i.e. doctor offices).
They have title to the property so there is no reason to use the GT scare to flip these properties. They can use an lame excuse they want. They don't even have to give a reason, because they own the property.