The only item in prophecy left to be fulfilled is Judgement Day.
That’s what was taught in Christendom, up till relatively recently.
"But I and others, who are right-minded Christians on all points, are assured that there will be a resurrection of the dead, and a thousand years in Jerusalem, which will then be built, adorned, and enlarged, as the prophets Ezekiel and Isaiah and others declare." Justin Martyr Dialogue With Trypho c 140 AD.
The resurrection is very shortly before Judgement Day.
Revelations is symbols, like a painting.
Shows patterns, using metaphors to explain them.