The WTBTS teaches that God's Kingdom WILL BE.
I understand that God's Kingdom is something to be requesting. (may your Kingdom come), (keep asking), (follow the way, the truth the life), (faith without works is dead). Logically, in my opinion, if something is viewed as done (it will be), that weakens works toward the goal (it can be). I think Christain believers are in agreement that grace is not something to work for. But isn't the Kingdom something to work for? If someone believes it will come no matter what, then what works can be justified for the hope of it coming?