“Prophecy often has dual fulfillment.”
Even if that were true, it’s not so in this case. Luke said the destruction of Jerusalem would fulfill “all that was written.”
The first 7 chapters of Revelation are about the persecution of the apostles and their churches. Chapters 8-20 are about the judgment and fall of Jerusalem. The “New Jerusalem” coming down from heaven is Christ’s church. Yeah, that’s us: Jews and Gentiles who believe in and follow Christ.
There is nothing left to be fulfilled because God’s plan for the redemption of mankind is complete.
Where is that?
What a pathetic "new heaven and a new earth" Preterists think God constructed.