I believe that no one would interpret 2 Peter 3:10-12 in such a way that it's not referring to the end of the world if it wasn't for doctrinal bias. It's interesting how Premils throw their literal rules of interpretation out the window when it comes to passages like that one.
It is the end of the world in regards to the curse set in place at the disobedience of Adam. All of Adam's punishment will be turned back to a perfect world. Including the physical geological divides at the Flood. Revelation 6:14
"And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places."
This happens when the heaven dissolves in 2 Peter 3. This is not Armageddon. Fire will burn up every work on earth. Yet there are still all those humans in that list hiding in caves. This is not the moment they are all killed at Armageddon in Revelation 19. This is Zechariah 14:4-9
"And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south. And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the Lord my God shall come, and all the saints with thee. And it shall come to pass in that day, that the light shall not be clear, nor dark: 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. 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. And the Lord shall be king over all the earth: in that day shall there be one Lord, and his name one."
Notice the Lord shall be king over all the earth. Then the 7th Seal will be opened. Then the Trumpets start sounding. This is before Satan's 42 months in Revelation 13 at the 7th Trumpet. When Jesus is sitting on that throne in newly remodeled Jerusalem, He will separate the sheep from the goats. So humans are not all killed yet. But all will see the end of their Adamic flesh. Some to eternal life on earth, starting with the Millennium Kingdom. The goats to eternal death. After the sheep and goats, Jesus will concentrate on the tares and the wheat sown during the Trumpets and separation of the sheep and goats. This is the 7 Thunders, the nations themselves. All the way up to the 7th Trumpet, when time is called for Adam's 6,000 years of punishment, and Daniel's 70th week with Jesus reigning as Prince.
Then and only then in the days of the 7th Trumpet Daniel 9:27 may happen and we see Revelation 13 unfold. If the Covenant is confirmed and the harvest is complete, there may not even be 42 months given to Satan to split the week in half. If the 42 months don't happen, neither will the battle of Armageddon, nor the 7 vials. Jesus is already on earth on His throne. The rest of humanity will be killed in the winepress, because the harvest is over. The Millennium will start immediately.
What organization will be during the Trumpets and Thunders are all false christs popping up claiming to have authority and starting kingdoms, but Jesus said to not listen to any of them. The world will be in chaos, and angels will be rounding up sheep and goats, because there won't be any transportation, since literally all the works of man will have been burned to a crisp. Amil declares this all over in a split second of time resolving all tribulation immediately.
Post tribulation people don't give any time for Jesus on earth, even though in Matthew 13 and 25 Jesus specifically said He and the angels would be present on the earth. This not rebuilding instantly and gathering instantly. This could be months, and weeks depending on who is left after the church is taken away and glorified, when Jesus sets His feet on the mount of Olives. Yes it is a climactic end to every thing, work of man, on earth. Humans are literally hiding in caves and under rocks (rubble left of all skyscrapers) . No more computers nor networks, nor means of finance, and probably no food to eat. It will literally be the worse time on earth ever imagined for 8 billion souls, minus the redeemed and glorified church. And many seem fine to go through it as sheep and goats, wheat and tares, but certainly they will have missed the church leaving before Jesus gets down to business cleaning up the mess from this climactic end of life as we know it event. Amil certainly sugar coat it stating it will be so fast, no one will know what hit them. In reality no one will be prepared to live after the reality of God's Will hits the earth.
So yes, the end of the world, and the refining fire that makes it perfect as before sin. You seem to reject the fact that Noah stepped off the earth into a new world and a new heaven. There were now weather patterns where there had been none prior. The poles would freeze over. Bodies of water would come and go. The continents would drift apart.
After the Second Coming Jesus will be creating it back to perfection. Jesus will rule for 1,000 years until all is back under subjection as Paul declared. Only after Jesus hands back creation, will all creation cease or flee away as John put it. The New Heaven and earth will be instantaneous. It will not take days, weeks, or years. It will not even takes seconds, so definitely not the Second Coming nor even what is described in Revelation 19, which you seem to cut off without seeing the narrative run all the way to the GWT.