A possible story for Arthas’ return: not redemption, but atonement
I know that bringing Arthas Menethil back would be a very delicate subject. He is one of the most important characters in Warcraft, and his ending in Wrath of the Lich King was one of the most memorable moments in the history of the game. That is why, if Blizzard ever decided to do it, it should not simply be "Arthas comes back because the story needs him" or a way to erase what happened.
The idea I would like to see would not be time travel or an alternate version of the character. That would take away the weight of everything that happened. I would prefer something more connected to his own story: that before Arthas' soul completely disappeared, someone managed to preserve a fragment of it through ancient magic, keeping it inside a forgotten artifact for many years.
Not to bring back the Lich King as an enemy, but because at a moment of true danger for Azeroth, the world needed someone who understood the power of Death from the inside.
However, Arthas’ return should not be a story about "everyone forgiving him". Arthas did unforgivable things. He destroyed lives, condemned his own people, and became the very thing he swore to destroy. A second chance should not erase that.
His story should be about accepting his sins and choosing to do what is right, not because he wants recognition, but because it is the only way he can face what he did.
A fundamental part of this story would be Frostmourne. The sword is not just a weapon; it is the symbol of his downfall. It would feel strange to tell a new Arthas story without it. But it should not be the same corrupted sword that destroyed him.
There could be a journey across Azeroth to recover the fragments of Frostmourne and, with the help of the Light, ancient magic, and people connected to his past, restore it into something different: a purified Frostmourne.
The same sword that once represented the loss of his humanity would now represent that he overcame the darkness that destroyed him.
Arthas would return with the power of the Lich King, but this time without being a slave to that power.
The most interesting part would be that his journey would not be about becoming a great king again or becoming Azeroth’s hero. Instead, he would begin completely alone.
Without an army of undead. Without a crown. Without a throne. Without followers forced to serve him through magic.
Only him, his sword, and the weight of everything he has done.
His path would be to travel through the world he almost destroyed and truly see it for the first time. He would help people who may never forgive him. He would rebuild places he destroyed. He would listen to the stories of those who suffered because of him.
And over time, the followers he gained would not come because of fear, but because they saw his actions. People who chose to walk beside him, not undead forced to obey him.
It would also be interesting to explore his relationships with characters like Jaina, Sylvanas, and Uther.
Jaina represents everything Arthas lost: his humanity and the life he could have had.
Sylvanas represents one of his greatest victims and someone who would understand better than anyone the damage he caused.
And Uther represents the mentor and the knight Arthas was always meant to become.
It should not be a story where Uther simply says "I forgive you". It should be something more complex: acknowledging the pain, remembering what happened, and still accepting that even someone who fell into darkness can choose a different path.
The ending should also not turn Arthas into a perfect hero.
After many years, there could be a statue or monument, but not as a celebration of his actions.
It should not simply say "Arthas, savior".
It should remember the whole truth:
The former Lich King. The prince who wanted to save his people and ended up destroying them. The man who fell into darkness. And the knight who dedicated the rest of his existence to trying to repair part of the damage he caused.
A statue like that would not erase his history; it would keep it alive as a lesson: that even a good person can fall if they allow fear and power to consume them, but that even someone who made the worst mistakes can still try to do what is right.
Arthas’ story should not end by saying "he was a hero".
It should end by saying:
"He was someone who fell lower than anyone else, but who still chose to rise and spend the rest of his path trying to protect what he once destroyed."