Scripture makes plain that He will not land His feet on this earth again.
Scripture like Matthew 26:29?
...This product of the vine from now on until that day when I drink it new with you in the kingdom of My Father.
Zechariah 14:2-16
I'll gather all the nations against Jerusalem to battle, and the city will be captured, and the houses plundered, and the women ravished...Then Jehovah will go forth and fight against those nations...And His feet will stand in that day on the Mount of Olives...Jehovah my God will come, and all the saints with Him...And Jehovah will be King over all the earth...and there will be no more curse, for Jerusalem will dwell securely...And everyone left from all the nations that went forth against Jerusalem will go from year to year to worship the King, Jehovah of hosts.
John 8:58
Jesus said to them, Truly, truly, I say to you, Before Abraham came into being, I am. So they picked up stones to throw at Him.
Acts 1:9-12
While they were looking on, He was lifted up, and a cloud took Him away from their sight. And while they were looking intently into heaven as He went, behold, two men in white clothing stood beside them, Who also said, Men of Galilee, why do you stand looking into heaven? This Jesus, who has been taken up from you into heaven, will come in the same way as you beheld Him going into heaven. Then they returned to Jerusalem from the mount called Olivet.
Daniel 2:34-35
A stone was cut out without hands, and it struck the image at its feet of iron and clay and crushed them...And the stone that struck the image became a great mountain and filled the whole earth...
Hebrews 1:6
He brings again the Firstborn into the inhabited earth.
Revelation 10:1-5
And I saw another strong Angel coming down out of heaven, clothed with a cloud; and the rainbow was upon His head, and His face was like the sun, and His feet like pillars of fire; and He had in His hand a little opened scroll. And He placed His right foot on the sea and the left on the land...And the Angel whom I saw standing on the sea and on the land...
5:10
Made them a kingdom and priests to our God; and they will reign on the earth.
20:7-9
Satan will be released from his prison and will go out to deceive the nations which are in the four corners of the earth, Gog and Magog...And they went up upon the breadth of the earth and surrounded the camp of the saints and the beloved city, and fire came down out of heaven and devoured them
21:1-3, 10, 24-26; 22:2-3
And I saw a new heaven and a new earth...And I saw the holy city, New Jerusalem, coming down out of heaven...Behold, the tabernacle of God is with men, and He will tabernacle with them, and they will be His peoples and God Himself will be with them...The holy city, Jerusalem, coming down out of heaven...And the kings of the earth bring their glory into it. And its gates shall by no means be shut by day...And they will bring the glory and honor of the nations into it...And the leaves of the tree are for the healing of the nations...And the throne of God and of the Lamb will be in it.
22:20
Amen. Come, Lord Jesus
As to His motive. Ask Him
I think you're saying Scripture doesn't reveal any motive of God for your interpretation's view.
As to Christ's motive to return to earth: earth is what He made for man and made man from. And man is made to contain Him.
2 Corinthians 4:7
We have this treasure in earthen vessels.
Revelation 21:2
I saw the holy city, New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband.
Isaiah 65:25
The wolf and the lamb will feed as one, and the lion will eat straw like the ox, and dust will be the serpent's food; they will not harm nor destroy in all My holy mountain, says Jehovah.
I believe Jesus when He said MY KINGDOM IS NOT OF THIS WORLD. That's clear enough for anyone (except speculators).
So then when He states in Scripture that
The kingdom of the world has become the kingdom of our Lord and of His Christ, and He will reign forever and ever;
He means clearly
MY KINGDOM IS NOT OF THIS WORLD ?
Rev 11;15; Jn 18:36.
Is that also what He means when He says
Now is the judgment of this world; now shall the ruler of this world be cast out. And I, if I be lifted up from the earth, will draw all men to Myself
?
Thanks