Maybe God manifests the glory of His infinite justice by punishing Satan and His angels forever. All humanity would be saved. Therefore God would receive more glory than if only a few were saved. Human universalism would be the preferred view because God is most glorified.
God would even be more glorified if there were fallen angels saved and Satan, the beast, and false prophet were punished forever. This view gives God the most glory. There’s even a translation that goes like this:
King James 2000 Bible
And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are (or were), and shall be tormented day and night forever and ever.
American King James Version
And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are (or were), and shall be tormented day and night for ever and ever.
So, it’s only Satan that is punished forever. This gives God the most glory out of all the views and His justice would shine forever. And things visible and invisible would be reconciled. All things is a reference to the new heavens and earth. The lake of fire isn’t included in that. You must enter the gates to become new or part of the all things made new. The dead become new. Or it could be that the three are tormented forever. They are known as the unholy trinity.
I found an article on NT Wright’s view of hell. He’s not a universalist but It could also be that the remains of the old self are left behind. The Devil will be tormented forever but lucifer is reborn. The same with resurrected wicked. They receive a new self and new incorruptible body after being reborn in hell. Their remains are left behind along with their old identity (old self). God gives them a new name and identity after being reborn. Both body and soul are punished forever. God would be most glorified and mercy would triumph over judgment. All would glorify God for His mercy.
Here’s Thayer’s Greek Lexicon on the word “Triumph” in the passage “mercy triumphs over judgment”.
To glory against, to exult over…Mercy boasts itself superior to judgment
So, Mercy is more glorious than judgment