We know the WG is preparing for the final war, but we also know that the final war that will turn the world upside down will happen after someone finds the One Piece and becomes the PK ( WB told us )
I'm hoping of a massive war on many fronts where like in the past more ideals of "justice" will try to prevail, someone will side with the WG, someone with Luffy, someone with BB etc etc, but Imu and the WG won't fall before someone finds the One Piece