Given the nature of God as Love, both the eternal plan of God and His every action must be in keeping with Divine Love. "There is no variation or shadow due to change"
Thus in Ephesians 1:9-10, God's true predestined plan is expressed: "For He has made know to us in wisdom and insight the mystery of His Will, according to His purpose which He set forth in Christ, as a plan for the fullness of time, to unite all things in Him, things in Heaven and things on Earth".
Because GOD IS LOVE, His eternal plan is to bring ALL creation into the oneness of Love's expression, the Body of Christ!
Because GOD IS LOVE, the life, death and resurrection of Jesus Christ is a predestined possibility and function of the Divine LIfe!
Thus, ALL Creation is predestined, foreknown, justified and glorified according to the nature of God as Love and the freedom that Divine Love gives us as finite beings to choose!