"On many past occasions and in many different ways, God spoke to our fathers through the prophets. But in these last days He has spoken to us by His Son, whom He appointed heir of all things, and through whom He made the ages. The Son is the radiance of God’s glory and the exact representation of His nature, upholding all things by His powerful word. After He had provided purification for sins, He sat down at the right hand of the Majesty on high. So He became as far superior to the angels as the name He has inherited is excellent beyond theirs." (Hebrews 1:1-3)
As I have outlined in my daily posts beginning on March 1st, at the close of the ages made by Jesus, humanity will all have been saved, justified, sanctified, and glorified in new immortal spiritual bodies. God will then be All in all humanity. Humanity will be a new creation and prepared for life in the New Heaven and New Earth during the ages that follow.“Blessed be the God and Father of our Lord Jesus Christ, Who blesses us with every spiritual blessing among the celestials…” (Ephesians 1:3)
“God, being rich in mercy, because of His vast love with which He loves us (we also being dead to the offenses and the lusts), vivifies us together in Christ (in grace are you saved!) and rouses us together and seats us together among the celestials, in Christ Jesus, that, IN THE ONCOMING AGES, He should be displaying the transcendent riches of His grace in His kindness to us in Christ Jesus.” (Ephesians 2:4-7)
By the term “celestials” is meant the trillions of galaxies, stars and planets in our Universe, and the celestial beings with spiritual bodies who live on or among them - the angels.
Redeemed humanity, having been made into image of God and His Son will have...
“…an administration of the complement of the eras, to head up all in the Christ -- both that in the heavens and that on the earth…completing the All in all.” (Ephesians 1:10-11, 23)
Humanity is in the process of being prepared to judge the angels. The result of that judging will be that all angels, including Satan, will also be reconciled to God.
"For God locks up ALL together in stubbornness, that He should be merciful to ALL." (Romans 11:32)
When all angels have been reconciled to God the plan of God the Father will have been successfully completed and the reign of Jesus, the Son of God, will be returned to God the Father. All creation will have joyfully and voluntarily subjected themselves to our gracious, loving and merciful Father.