King James, not God, was the one that "authorized" this edition of the Bible. This is not meant in anyway to lessen the authority of the Scriptures as the inerrant, infallible Word of God. But to say that this is the last one that God authorized is absolutely wrong.
The Biblical Position on the King James Version Controversey
Until then, the King James is the final authority and the standard in which are others are to be evaluated.
Recently, fragments have been found, and dated to the mid first century, that refute those passages where the Newbible trust attempted to claim inaccuracy in the received texts. Isn't it interesting that the fragments found just happened to be those passages where changes were attempted? The Lord is at work protecting his word.