Okay, okay, this is the first time I'm actively participating in theorizing, so bear with me for a while, and please read it carefully.
Half of this is speculative and made on the spot, and it also uses other theories as bases.
Credits to Ashikai; her theory about the Godslayer Protocol is what made me think of doing this. Okay, back to it.
Let's start on what the Godslayer Protocol plan is.
It's a plan, primarily led by Jingliu with help from Luocha, to end the millennia-long war against the Aeon of Abundance.
The protocol is believed to involve using the fragments of Tayzzyronth, the Aeon of Propagation, contained within Luocha's coffin as a weapon to destroy Yaoshi, with potential involvement from Ruan Mei for broader support.
In Exotale Scene 8 in the second bad ending, the protocol was probably started by Jingliu, who used the fragments of Tayzzyronth to empower Jing Yuan's Lightning Lord, using Ruan Mei's Swarm and the Xianzhou Alliance. Jingliu will ascend to become the 8th Lord Ravager of Abundance to wage war against Yaoshi.
That will 100% end with failure unless the golden blood of Nanook was also used by Lan to attack Yaoshi while they were fighting the whole Xianzhou Alliance.
Then, that way, they have a chance of success, though it's rather low given how Abundance operates.
As Ashikai said, the name of the Godslayer Protocol is rather misleading considering how it needs to be implemented to succeed with high chances.
To keep it short, Tayzzyronth was needed for the fact that Propagation was a narrower path of the broader path of Permanence, and Abundance is also a narrower path compared to Permanence.
In this theory, I'm straight up supporting her theory of Long's rebirth because I'm a fan of Permanence.
Maybe in this protocol, they will use Propagation to combine it with Abundance to make Permanence whole again and revive Long.
Okay, just watch Ashikai's theory about the Godslayer Protocol to better understand it.
But my theory is not about the Godslayer Protocol plan itself; it's about the aftermath of the protocol.
Wouldn't Lan need to divert their hunt to another Aeon? But we need to remember that Hunt itself was and can be called a narrower path compared to the broader path of Destruction.
So maybe Lan will be assimilated into Nanook. That's one of the harsh aftermaths, but we will talk about all aftermaths, so stick with me, okay?
In another aftermath, Lan might divert their hunt to another Aeon that can be considered a danger. And which Aeon is a danger? Destruction, Nihility, and Finality.
No, I'm not saying that Lan can actively hunt them, but they might join us to hunt them alongside us; after all, hunting can also be with a group.
I'm not going to deep dive into this theory, but I'm only going to point out the possible ones.
Big blue Lan can also kill themself after Abundance was assimilated into Permanence.
After all, the Godslayer Protocol plan can either help the Xianzhou Alliance or make the Xianzhou Alliance change religion for the fourth time.