Not sure what you mean about all 7 Churches are now completed as far as judgment. It's actually apparent from His Messages that they are not yet completed as to judgment yet, but are still pending, all the way up to His return. Just because those Messages were given to those 7 Churches back in history, and some of them no longer exist in those lands anymore, that does not mean what He gave in those no longer are in effect. The 7 Churches represent a Heavenly pattern for the 7 candlesticks John saw. And only Jesus can remove those candlesticks.
Look at His Message to the Church at Sardis. He linked His judgment with them to His coming "as a thief". Our Lord Jesus has not yet returned today, but He will, and He will come upon many "as a thief" like He warned on the 6th Vial in Rev.16. So that Message is still in effect for today, and all the way up to His return. Likewise with each of the other 7 Messages.
Go back to Revelation 1:1. He did come quickly for Sardis. Some were taken and some left behind. That age ended, and Jesus came before the end of that age.
Peter tells us the relationship between "a day" and "a thousand years." We read about "a thousand years" in Revelation. Put them together.
In one way, the way mortal men calculate time, six thousand years were given before the establishment of Eden for "work" to be done. That would be followed by another thousand years when the world would enter its "eternal rest." Thus there are patterns in history being repeated.
During each age, there are saints who are "ahead of schedule" being ahead of that generation. They steer others in the right direction. They were caught up in the air to be with Jesus even before Jesus was born to Mary. Jesus knew Abraham. Elijah and Moses knew him. These were men whose names were in the book of life from the foundation.
Jesus came for them even before he was born to Mary. Jesus came for Stephen. He came for John. But mortal eyes may not see it and know what they is going on. The kingdom does not come with observation.
Revelation 1:1 promises the things in the book will come to pass shortly. It needs to be read with that in mind. It is a book that promises good things to people who read it, hear it and obey it. If people in John's day read it and it could not do them any good, the promises wouldn't be true. That was true for people 1500 years ago. It was true for people 500 years ago. It is true today.
I advise reading it as if things are happening now. Read, "Behold, I come quickly," and ask, "At this very moment possibly?" Do not lay a restriction on his "coming." He is always coming. Coming back then, coming now, and coming in the future.
First we should understand how Jesus comes for us and leads us into the rest of the seventh day of Genesis. If we understand how he can perfect and come for us, then we have clues about he can perfect the world and eventually come for the whole world.
I think there were seven types of Christians then and there still are. There were seven types of spiritual problems before John wrote it -- and he uses the language that shows that. Thus Jezebel was around in the days of Elijah. She was present in John's day; and she's still around today.
Little by little Jezebel's power is being diminished. It got diminished when the historical Jezebel of the Old Testament lived and died. Each age eats away at that power. The kingdom advances in every age.
I think I could find about twenty passages that say Jesus would come back then. If someone doesn't see it, he'll think the passages need to be modified somehow. I'll give one passage. If you want others, I can give them, but you probably know what I mean.
1 Thessalonians 2:19 For what is our hope, or joy, or crown of rejoicing? Are not even ye in the presence of our Lord Jesus Christ at his coming?
It was "now" when he wrote that. It was "now" when Israel heard the trumpet and didn't want to hear it. It was "now" when David compared his generation to that of Moses:
Psalm 95:7 For he is our God; and we are the people of his pasture, and the sheep of his hand. To day if ye will hear his voice,
The day of salvation is always "today."
What is the holy city coming day? It is Eden. The Tree of Life tells me that. The "pure river of water of life" tells me that too. John is seeing the river that comes from the throne of God before it splits into four to spread out in four directions. We will have a problem with Genesis if we think the rivers there are physical. Have anyone ever known of a river that starts in one place and then divides into four? It can't be rivers found on the earth then, but there is a way that earth conforms in part to the heavenly pattern. The problem is that it conforms only in part. Things are going to be changed so that things on the earth are as they are in Heaven. Heavenly water has one source. Some "mountains" need to be changed
Zechariah 14:7 But it shall be one day which shall be known to the Lord, not day, nor night: but it shall come to pass, that at evening time it shall be light.
8 And it shall be in that day, that living waters shall go out from Jerusalem; half of them toward the former sea, and half of them toward the hinder sea: in summer and in winter shall it be.
9 And the Lord shall be king over all the earth: in that day shall there be one Lord, and his name one.
Living waters again -- not physical water. Jerusalem means the Holy City or Eden which is already there, above the earthly Jerusalem -- coming down. It's also called God's holy hill in some places.
There are also "spiritual mountains." They can be moved. Don't be astonished when Jesus said faith could move mountains. It does. It is also said that Israel stood "under" a mountain -- not next to it but "under." So they did. Joshua could go up a little, but only Moses could go all the way up. That has been hard to see because translators think "under" can't be right so they change it to what they think it should be.
Abraham and Isaac visited that "holy hill." They saw a "ram". The Jews say that ram existed before God made anything else. So it did, I think -- the Lamb of God that existed from the foundation of the world. Note too that it's caught in thorns. Compare that to Jesus and the crown of thorns. Compare to the thorns as a spiritual problem caused by Adam and Eve. Compare to how God manifested to Moses in a thorn bush. God can manifest in the lowliest of things -- and change them into something His Glory can be shown.
My advice to anyone is to believe that anyone could read and hear it and then keep the sayings in it. After all, that's what it says as hard as it may be to see how people hundreds of years ago could benefit. If we start off with a preconception in our minds, convinced that Jesus did not come for those who waited for them back then, we cannot understand the book. It's not sealed, but it will look that way. Can we believe what we read?
Revelation 22:10 And he saith unto me, Seal not the sayings of the prophecy of this book: for the time is at hand.
It was at hand back then, and it is at hand again for us today. Surely we should be able to see how John heard a trumpet, was caught up and met Jesus. Jesus came for him.