The kingdom of God has been in existence as long as God Himself. There is no reason at all to believe it will ever move to another place.
If you believe that God's Kingdom is physical, It would be reasonable to also believe it is Located in Heaven.
However there is an equal likelihood that the Kingdom is Spiritual ... In which case God and his Kingdom are one.
If God's kingdom were Earthly The world would have to exist for Ever... This is known to be impossible. As the World and the solar system have a finite life.
You are confusing, God's kingdom and the kingdom of Christ Jesus.
Daniel 2:45 "Forasmuch as
thou sawest that the stone was cut out of the mountain without hands, and that it brake in pieces the iron, the brass, the clay, the silver, and the gold; the great God hath made known to the king what shall come to pass hereafter: and the dream is certain, and the interpretation thereof sure."
That stone which was cut out of God's eternal kingdom is Christ's kingdom: 1 Corinthians 15:24-25 "
Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power.
For he must reign, till he hath put all enemies under his feet."; ---> 1 Corinthians 15:27-28 "For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him. And
when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all."
This Kingdom by Christ (which eventually is subjected back to the Father so that the stone is planted back into that mountain as one) is not the old Jerusalem here on earth, nor God's heavenly Jerusalem above as mentioned at Galatians 4:26, but it is the "New Jerusalem" as shown residing with men at Revelation 21:2-3. It's coming down from heaven signifies that this New Jerusalem is the child of the heavenly Jerusalem above. And the 144, 000 rule in that New Jerusalem right here among men because they are men.
I sympathize that this understanding blows Jehovah's Witnesses apart. For they have long taught that their dead elect ones have been going to heaven and are already actively working with Christ. But that is not how it works:
1 Thessalonians 4:15 "For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:
17 Then we which are alive and remain
shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord."
Though I caution that it says not that these ones go to live in heaven, but that these ones "
meet the Lord in the air so shall we ever be with the Lord."
Jehovah's Witnesses have had to recant many things they taught in the past and so it is not surprising that they need yet to recant more. And i am not saying that is bad, for they have sincerely tried just as any of us who care do sincerely try. And we all get things wrong along the way. So what is important is our humility when we come to these places where we need to grow in the accuracy of what we believe.
Jehovah's Witness are equipped to with the basic knowledge to be able to understand this if they only would get around to doing so. For it was through them that I many years ago learned what this really means, "
to meet the Lord in the air: and so shall we ever be with the Lord." They have simply not gone the full way with their understanding as they are holding too much other mistaken ideas as a primary base for their organization and to do so would thus cause some major changes to their system of belief. I believe they have been so dogged for changing certain of their teachings in the past that they now fear to recognize what has been right under their noses for some time now.
Jehovah's Witnesses quite correctly teach that there is a devious spiritual authority of the air which rules over this present world: 2 Corinthians 4:4 "In whom
the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them."; --> Ephesians 2:2 "Wherein in time past ye walked according to the course of this world,
according to the prince of the power of the air, the spirit that now worketh in the children of disobedience."
Clearly all that is meant by meeting the Lord in the air is that these ones who now are united forever with Christ in his godly divine ruler-ship of this earth set the new spirit of the air which operates in men of obedience. Our present governments in walking by their own will by their own intelligence carry forward the spirit of the corruption of the serpent as that spiritual air we ingested and were motivated by. This one kingdom government (which Daniel 2:44 clearly tells us, "shall break in pieces and consume all these kingdoms, and it shall stand for ever") now carries forward the uncorrupted spirit of Christ so that it becomes the new spiritual power or authority of the air.
The fact that Christ submits this kingdom back to God after all his enemies are placed under his feet does not mean this kingdom ceases to exist, for it is the earth's government right here reigning upon the earth for ever more.
No, mama heavenly Jerusalem will never lose her child, the new Jerusalem. That child exists forever but it's principal desire of heart is to bring all things back to God as one and by the power and love of Christ it will not fail.