No, it is not closing, not will it likely anytime soon. However based on very broad based anecdotal evidence, they are clearly having problems, and trying desperately to manage them. Organizations don't stop building and expanding because everything is just fine, especially ones that blindly pride themselves on that growth.
I believe the problems started in earnest a few years ago, (JW.org itself was a turn on a dime out of desperation). Several rather drastic measures have been attempted to reign in costs, and keep revenue flowing. The organization also has been trying to change its image, (of course without any true social reforms). These tactics are likely not working as planned, (they are tactical, read reactionary, not strategic), and the panic button has been pressed. They don't want to do this. There is nothing in it for them other than savings in operating and capital spend. That does not make "The one and only True Religion" look so good, does it?
What is not understood clearly is what broke all of a sudden and why.