I also notice that the Bible actually says that the Holy City is going to come down from Heaven to Earth, oquote]
yes as revelation 21 ;3-4 informs us the tent of God will be with mankind .
the new rulership and the new earthly society of people are what it is all about, gone will be that sea of mankind that is tossing and turning and bringing up the mire .
yes the tent of God will prove to be over mankind, and the former things will have passed away.
there will be no ungodly men around
But by the same word the heavens (rulerships of men)and the earth that are now are stored up for fire and are being reserved to the day of judgment and of destruction of the UNGODLY men.2 PETER 3;7
Not litral fire of cause ,but just as litral fire destroys for good ,so the rulerships of men will be destroyed for good and any who are ungodly
And I saw a new heaven and a new earth; for the former heaven and the former earth had passed away, and the sea is no more. 2 I saw also the holy city, New Jerusalem, coming down out of heaven from God and prepared as a bride adorned for her husband. 3 With that I heard a loud voice from the throne say: “Look! The tent of God is with mankind, and he will reside with them, and they will be his peoples. And God himself will be with them. 4 And he will wipe out every tear from their eyes, and death will be no more, neither will mourning nor outcry nor pain be anymore. The former things have passed away.”
and it will be VERY GOOD