But that is not what you said xzins
Here are your words
If God could have created the world differently (which He could have), then the world He did create is exactly as He wants it to be. Since this world is not through yet, then the eternal God could, because He is eternal/timeless, go back (our perspective) and make something be incorporated in the movie that hadn't yet been there.
That is God changing His mind before the end of the book Steve. It requires God to go and change something that he has already ordained, and a violation of Scripture as well as the nature of God
Isa 46:10 Declaring the end from the beginning, and from ancient times [the things] that are not [yet] done, saying, My counsel shall stand, and I will do all my pleasure:
Act 15:18 Known unto God are all his works from the beginning of the world.
Hbr 6:17 Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed [it] by an oath: