I still think there's more going on to White Chain than what Nyave says, even though the art is giving her a Solomon David expression, but it'll take time to play out. We've gotten a lot of shots of her visiting and helping common, ordinary people who are suffering, and it seems probably relevant. Maybe she is trying to understand something that'll give her a tool she needs later.
I still think the black/white divide on their clothing is relevant too, and that White Chain and Zaid are happy to see Allison and have white on their clothing, while Nyave, Vigilant, and Princess have black on their clothing and are not happy to see Allison.
I am...not convinced Allison can unite the demiurges in a single book. But Allison has always followed in Aesma's footsteps, being an utter fool and sometimes finding an unexpected path that way, so I expect something fun will happen. She is giving me Aspected Chaos vibes in this last page--just the way she's talking here.
I do look forward to 001 showing up again, she was too awesome to go away permanently.