So the spiritual temple is an arrangement for pure worship. And Jehovah is the temple. And naos means the sanctuary. So Jehovah would be with the great crowd.
21 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 also saw 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: โLook! The tent of God is with mankind, and he will reside with them, and they will be his people. And God himself will be with them.
Goes along with this scripture. Gods tent is with them and he resides with them. And New Jerusalem is coming down out of heaven. So this shows the crowd isn't in heaven if they saw this. Also scripture says God create the Earth to be inhabited, what would be the point of keeping it in it's new form, cleansed if their was no one to live on it?