The end of death is the end of the process. There isn't a single text that offers hope AFTER 2nd death.
And the seventh messenger did sound, and there came great voices in the heaven, saying, 'The kingdoms of the world did become those of our Lord and of His Christ, and he shall reign into the ages of the ages!' (Rev.11:15)
9 And a third angel followed them, calling in loud a voice, “If anyone worships the beast and its image, and receives its mark on his forehead or hand, 10 he too will drink the wine of God’s anger, poured undiluted into the cup of His wrath. And he will be tormented in fire and brimstone in the presence of the holy angels and of the Lamb. And the smoke of their torment goes up into the ages of ages, and they have no respite day and night who do homage to the beast and to its image, and if any one receive the mark of its name. (Rev.14:9-11)
20 And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone. (Rev.19:20)
and the Devil, who is leading them astray, was cast into the lake of fire and brimstone, where are the beast and the false prophet, and they shall be tormented day and night -- into the ages of the ages. (Rev.20:10)
3No longer will there be any curse. The throne of God and of the Lamb will be within the city, and His servants will worship Him. 4 They will see His face, and His name will be on their foreheads. 5 And night shall not be any more, and no need of a lamp, and light of the sun; for the Lord God shall shine upon them, and they shall reign into the ages of ages. (Rev.22:3-5)
The verses above indicate Christ & the saints shall be reigning "into the ages of the ages", including the millenium & after the New Jerusalem comes down from heaven. But 1 Cor.15:25 says Christ's reign is until He has put all enemies under His feet. Since He is still reigning at the time of Revelation 20-22, all enemies are not yet under His feet. So neither is God yet "All in all" (1 Cor.15:28).
Therefore neither is death abolished (1 Cor.15:26), since that is associated with the end of Christ's reign (v.25). Also those humans who died a second death in the lake of fire, which is the second death, are still dead, so death is not yet abolished (v.26). As long as the second death remains & is not abolished, death is not abolished as per v.26.
Neither is "all rule and authority and power" yet nullified (1 Cor.15:24) by Revelation 21-22. There are still kings in the earth (Rev.21:24). There is still the throne of the Lamb & the saints reigning (22:3,5). So neither is death abolished or God "all in all" (1 Cor.15:28).
God cannot be "all in all" (1 Cor.15:28) while there are still those in the second death & those being tormented in the lake of fire (Rev.14:9-11; 19:20; 20:10).
In Revelation 22:2 we also have leaves that are for the healing of the nations. Who at this time would need healing?
Eventually God will be making all new (Rev.21:5) & will be "in all" (1 Cor.15:28).
And every creature which is in the heaven and upon the earth and under the earth, and those that are upon the sea, and all things in them, heard I saying, To him that sits upon the throne, and to the Lamb, blessing, and honour, and glory, and might, into the ages of ages.(Rev.5:13)
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https://www.tentmaker.org/books/hope_beyond_hell.pdf
1 Jn.2:27 But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him.
"...it doesn't say what most evangelizers of hopelessness want it to say in that regard either."
"It is false, he maintained, to translate that phrase as "everlasting punishment," introducing into the New Testament the concept found in the Islamic Quran that God is going to torture the wicked forever."
Scholar's Corner: The Center for Bible studies in Christian Universalism