What about Zon-Bral AU guys
I have a point.
Godsrein Prophecies showed us WHAT would happen if Shelyn were to one day redeem Zon-Kuthon. Spoiler: it wouldn't be good, because Dou-Bral would be horrified by what he'd done, and Shelyn would ruin the whole experience.
Starfinder, on the other hand, shows us that REALLY can redeem Zon-Kuthon. The threat to Shelyn's life. He was willing to sacrifice himself and give his powers to his sister without a second thought.
So an AU where Shelyn is also in danger, maybe from one of the Outer Gods. An AU where Zon-Kuthon - or rather Dou-Bral - regains control over himself to protect her.
An AU where after a hard fight he lies on her lap. And when her gentle palm touches his cheek, he covers it with his palm. For the first time in thousands of years without trying to hurt.
It wouldn't be easy, because Dou-Bral was still the Prince of Pain for thousands of years. He can never leave this past behind - one way or another, it is now a part of him. But he would be able to accept his sister's hand. And they would begin the long journey to healing. Together. Like... Family
And Zon-Bral - no longer the broken Zon-Kuthon, but not the former Dou-Bral - will meet his first dawn in Nirvana.
For the first time in thousands of years.