The "heaven was removed as a scroll when it is rolled up" could simply be the "veil" into the heavenlies is finally removed so that all will see what they fear most pleading that the rocks fall on them but Father causes "every mountain and island were moved out of their places" so no one can hide:
Hebrews 9:3 And after the second veil, the tabernacle which is called the Holy of holies;
Revelation 6:14-17 And the heaven was removed as a scroll when it is rolled up; and every mountain and island were moved out of their places. (15) And the kings of the earth, and the princes, and the chief captains, and the rich, and the strong, and every bondman and freeman, hid themselves in the caves and in the rocks of the mountains; (16) and they say to the mountains and to the rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: (17) for the great day of their wrath is come; and who is able to stand?
We know based on Paul that there are 3 levels of heaven:
2 Corinthians 12:2 I know a man in Christ, fourteen years ago (whether in the body, I know not; or whether out of the body, I know not; God knoweth), such a one caught up even to
the third heaven.
The 1st heaven is that which we see from the surface of the earth to the galaxies in space and for conjectures sake we shall call it the outer court(our bodies). Then the 2nd heaven where the spiritual realm exists we shall call the holy place(our soul). Then the 3rd heaven is the throne room we shall call the holiest of holies(our spirit):
Hebrews 8:4-5 Now if he were on earth, he would not be a priest at all, seeing there are those who offer the gifts according to the law; (5) who serve that which is
a copy and shadow of the heavenly things, even as Moses is warned of God when he is about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern that was showed thee in the mount.
1 Corinthians 3:16-17 Know ye not that ye are a temple of God, and that the Spirit of God dwelleth in you? (17) If any man destroyeth the temple of God, him shall God destroy; for the temple of God is holy, and such are ye.
Please remember that we are instructed to sit in heavenly places in Christ Jesus while we are on the earth:
Ephesians 2:6-7 and raised us up with him, and made us
to sit with him in the heavenly places, in Christ Jesus: (7) that in
the ages to come he might show the exceeding riches of his grace in kindness toward us in Christ Jesus:
Revelation 12:7-12 And there was war in heaven: Michael and his angels going forth to war with the dragon; and the dragon warred and his angels; (8) and they prevailed not, neither was their place found any more in heaven. (9) And the great dragon was cast down, the old serpent, he that is called the Devil and Satan, the deceiver of the whole world; he was cast down to the earth, and his angels were cast down with him. (10) And I heard a great voice in heaven, saying, Now is come the salvation, and the power, and the kingdom of our God, and the authority of his Christ: for the accuser of our brethren is cast down, who accuseth them before our God day and night. (11) And they overcame him because of the blood of the Lamb, and because of the word of their testimony; and they loved not their life even unto death. (12)
Therefore rejoice, O heavens, and ye that dwell in them. Woe for the earth and for the sea: because the devil is gone down unto you, having great wrath, knowing that he hath but a short time.
Our Father will finish this work that He declared from the foundation of the world in all of His ordained sons by the end of the tribulation which will be the morning of the 7th day being the 7th millennium and then rest the remainder of that day/millennium before the white throne judgment commences:
Ephesians 1:3-5 Blessed be the God and Father of our Lord Jesus Christ, who hath
blessed us with every spiritual blessing in the heavenly places in Christ: (4) even as
he chose us in him before the foundation of the world, that we should be holy and without blemish before him in love: (5) having
foreordained us unto adoption as sons through Jesus Christ unto himself, according to the good pleasure of his will,
Please do not forget that this morning of the 7th day/millennium will also be the morning of the 3rd day/millennium from Christ when the "latter rain" commences:
Hosea 6:1-3 Come, and let us return unto Jehovah; for he hath torn, and he will heal us; he hath smitten, and he will bind us up. (2)
After two days will he revive us: on
the third day he will raise us up, and we shall live before him. (3) And let us know, let us follow on to know Jehovah:
his going forth is sure as the morning; and
he will come unto us as the rain, as the latter rain that watereth the earth.
1 Corinthians 15:45-52 So also it is written, The first man Adam became a living soul. The last Adam became a life-giving spirit. (46) Howbeit that is not first which is spiritual, but that which is natural; then that which is spiritual. (47)
The first man is of the earth, earthy: the second man is of heaven. (48) As is the earthy, such are they also that are earthy: and as is the heavenly,
such are they also that are heavenly. (49) And as we have borne the image of the earthy,
we shall also bear the image of the heavenly. (50) Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption. (51) Behold, I tell you a mystery: We all shall not sleep, but we shall all be changed, (52) in a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
So just because the Father makes the "heavens to pass away" or "be removed as a scroll when it is rolled up; and every mountain and island were moved out of their places"(such as Peter was led to write) at the beginning of the day of the Lord does not mean He has to replace the heavens and the surface of the earth before this last millennium and the great white throne judgment is over:
Revelation 21:1 And I saw a new heaven and a new earth: for the first heaven and the first earth are passed away; and the sea is no more.
I "conjecture" that there is a possibility that the Father has purposed to preserve to some degree the continent of Africa, where it just so happens that the pyramid of Giza lies, to be the place where those who repopulate the earth will reside during Revelation chapter 20 but please understand this is pure conjecture!
Father has proven that He like to rearrange His earth when He sees fit:
Genesis 10:25 And unto Eber were born two sons: the name of the one was Peleg;
for in his days was the earth divided; and his brother's name was Joktan.