This is the destructive power of Dispensationalism at work. Please allow Protestant Historicism to correct John Nelson Darby's error:
The Seven Churches, Seven Seals, and Seven Trumpets are not 3 prophecies depicting three separate dispensational periods of the church - the three parallel each other and depict three areas of experience through which the church will go between the First and Second Coming.
I. The Seven Churches depicts the religious conditions of the church and her surroundings (faithfulness, backsliding, restoration, judgment).
II. The Seven Seals depicts the political conditions of the church and her surroundings (enemy infiltration, corruption, apostasy, resistance).
III. The Seven Trumpets depicts the militaristic conditions of the church and her surroundings (persecution, displacement, torture, martyrdom).
The Seven Trumpets begin with the a symbolic depiction of the destruction of Jerusalem and the scattering of the church and continues all the way down through time until the Second Coming, just as does the Seven Churches and Seven Seals - which means Peter's description of the Earth burning up is not symbolic, but a literal destruction of the Earth with no chance of life continuing thereafter and no "seven year tribulation".
Clearly there will be life after the second coming, for it is written,
I will make people more rare than fine gold, and mankind than the gold of Ophir. (Isaiah 13:12)
“In that day,” declares Yehovah, “I will gather the lame; I will assemble the exiles and those I have brought to grief. I will make the lame my remnant, those driven away a strong nation. Yehovah will rule over them in Mount Zion from that day and aeonially. (Micah 4:6-7)
After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands, and crying out with a loud voice, “Salvation belongs to our God who sits on the throne, and to the Lamb!” And all the angels were standing around the throne and around the elders and the four living creatures, and they fell on their faces before the throne and worshiped God, saying, “Amen! Blessing and glory and wisdom and thanksgiving and honor and power and might be to our God to the aeons of the aeons! Amen.” Then one of the elders addressed me, saying, “Who are these, clothed in white robes, and from where have they come?” I said to him, “Sir, you know.” And he said to me, “These are the ones coming out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb. (Revelation 7:9-14)
For the earth will be filled with the knowledge of the glory of Yehovah as the waters cover the sea. (Habakkuk 2:14)
They will neither harm nor destroy on all my set-apart mountain, for the earth will be filled with the knowledge of Yehovah as the waters cover the sea. (Isaiah 11:9)
Never again will there be in it an infant who lives but a few days, or an old man who does not live out his years; the one who dies at a hundred will be thought a mere child; the one who fails to reach a hundred will be considered accursed. (Isaiah 65:20)
See, Yehovah is going to lay waste the earth and devastate it; he will ruin its face and scatter its inhabitants— it will be the same for priest as for people, for the master as for his servant, for the mistress as for her servant, for seller as for buyer, for borrower as for lender, for debtor as for creditor. The earth will be completely laid waste and totally plundered. Yehovah has spoken this word. The earth dries up and withers, the world languishes and withers, the heavens languish with the earth. The earth is defiled by its people; they have disobeyed the laws, violated the statutes and broken the aeonial covenant. Therefore a curse consumes the earth; its people must bear their guilt. Therefore earth’s inhabitants are burned up, and very few are left. (Isaiah 24:1-6)
For Yehovah will have compassion on Jacob and will again choose Israel, and will set them in their own land, and sojourners will join them and will attach themselves to the house of Jacob. And the peoples will take them and bring them to their place, and the house of Israel will possess them in the land of Yehovah as male and female servants. They will take captive those who were their captors, and rule over those who oppressed them.
(Isaiah 14:1-2)
I pursued my enemies and overtook them, And I did not turn back until they were consumed. I shattered them, so that they were not able to rise; They fell under my feet. For You have girded me with strength for battle; You have subdued under me those who rose up against me. You have also made my enemies turn their backs to me, And I destroyed those who hated me. They cried for help, but there was none to save, Even to Yehovah, but He did not answer them. Then I beat them fine as the dust before the airflow; I emptied them out as the mire of the streets. You have delivered me from the contentions of the people; You have placed me as head of the nations; A people whom I have not known serve me. As soon as they hear, they obey me; Foreigners submit to me. Foreigners fade away, And come trembling out of their fortresses. Yehovah lives, and blessed be my rock; And exalted be the God of my salvation, The God who executes vengeance for me, And subdues peoples under me. (Psalm 18:37-47)
An oracle concerning Egypt. Behold, Yehovah is riding on a swift cloud and comes to Egypt; and the idols of Egypt will tremble at his presence, and the heart of the Egyptians will melt within them. And I will stir up Egyptians against Egyptians, and they will fight, each against another and each against his neighbor, city against city, kingdom against kingdom; and the airflow of the Egyptians within them will be emptied out, and I will confound their counsel; and they will inquire of the idols and the sorcerers, and the mediums and the necromancers; and I will give over the Egyptians into the hand of a hard master, and a fierce king will rule over them, declares Yehovah Master of armies… In that day the Egyptians will be like women, and tremble with fear before the hand that Yehovah of armies shakes over them. And the land of Judah will become a terror to the Egyptians. Everyone to whom it is mentioned will fear because of the purpose that Yehovah of armies has purposed against them. In that day there will be five cities in the land of Egypt that speak the language of Canaan and swear allegiance to Yehovah… In that day there will be an altar to Yehovah in the midst of the land of Egypt, and a pillar to Yehovah at its border. It will be a sign and a witness to Yehovah of armies in the land of Egypt. When they cry to Yehovah because of oppressors, he will send them a savior and defender, and deliver them. And Yehovah will make himself known to the Egyptians, and the Egyptians will know Yehovah in that day and worship with sacrifice and offering, and they will make vows to Yehovah and perform them. And Yehovah will strike Egypt, striking and healing, and they will return to Yehovah, and he will listen to their pleas for mercy and heal them. In that day there will be a highway from Egypt to Assyria, and Assyria will come into Egypt, and Egypt into Assyria, and the Egyptians will worship with the Assyrians. In that day Israel will be the third with Egypt and Assyria, a blessing in the midst of the earth, whom Yehovah of armies has blessed, saying, “Blessed be Egypt my people, and Assyria the work of my hands, and Israel my inheritance.”
(Isaiah 19:1-25)