With China a new world authority on the scene, perhaps some older JWs will realize the utter meaningless of portentous Watchtower proclamations relating to the Kings of the North and South.
It does also demonstrate the fact that Bible accounts reflect the political impotence of the Israelites with their being pummelled into submission by either northern, namely Assyrian or Persian powers or by southern; Egypt or Babylonian rule and never being a power themselves. The Hebrew Bible encapsulates the longing for conquest and apocalyptic revenge by the small tribal alliance that was Israel of old.
Why on earth should the ancient Jewish visions of glory be sacred? China's rise to prominence should put the seven world empires and the myth of the "northern and southern kings" to bed forever.