Does this verse,
Revelation 11:15 ESV Then the seventh angel blew his trumpet, and there were loud voices in heaven, saying, "The kingdom of the world has become the kingdom of our Lord and of his Christ, and he shall reign forever and ever."
point to this verse,
Revelation 20:4 ESV Then I saw thrones, and seated on them were those to whom the authority to judge was committed. Also I saw the souls of those who had been beheaded for the testimony of Jesus and for the word of God, and those who had not worshiped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years.
or pointing to this?
Revelation 20:11 ESV Then I saw a great white throne and him who was seated on it. From his presence earth and sky fled away, and no place was found for them.
There is no need for a great white throne if the previous throne was the same throne.
https://eyeballdub.blogspot.com/2015/07/the-two-witnesses.html
