this is after, as we have read in Dan 12:7, Rev 11:17-18 how God's rage against those who did not follow His old covenant is wrought.
the entire book of revelation talks of the end of Jerusalem -- refer to NoDRdee's post
Revelation chapter 11. The chapter begins with John being told to measure the temple (v. 1) and this temple is in the holy city (v.2). These are clear references to Jerusalem. This also helps in dating the book before the destruction of AD 70, when the temple was destroyed. Imagine John being told to measure something which his 1st century readers all understood was no longer in existence!Christ is in heaven NOW, ruling NOW.
,bR>Chapter 11 continues with the story of the two witnesses of God, and their deaths at the hand of the beast, after which John records, And their dead bodies will lie in the street of the great city which is mystically called Sodom and Egypt, where also their Lord was crucified (v. 8). First, in both Deuteronomy (32:28-33) and in Isaiah (1:10), God refers to the Jewish people, and Jerusalem in particular, as Sodom, and Ezekiel 23 links Israel to her harlotries in Egypt. So, there is precedent for Johns use of these names to describe what had once been the city of God. But if there is any doubt where this evil takes place, John clears it up with his reference to the city where also their Lord was crucified. Jesus was not crucified in Rome, or in Berlin, or in Moscow, or in Washington, D.C. Our Lord was crucified in Jerusalem, and this is the city God has prepared for destruction in the book of Revelation
You’re correct that much of Revelation is centered on Jerusalem, however it wasn’t all accomplished in 70 AD. Jerusalem still stands, not even every stone from the old city has been torn down yet. The heavenly Jerusalem is still in heaven, not on Earth. The mountain hasn’t been cleaved to make wave for the faithful to depart the city and take refuge. The two witnesses haven’t laid dead in the street for three and a half years. Etc, etc, etc.
Just saying “it was all done in 70 AD” doesn’t make it so.