I've finished seika's story (0.14) and I must say her's unlike others have not much solution, but rather it went to a different path instead. I'll try to give my opinion w/o spoiling.
In my fictional opinion her way of a different species is very concerning even tho she already had said that she will avoid any duplicates because it might cause the two to kill one another and will guide them as a trial and error or parent and child kind of thing, but it's really scary if I think about it in a long run.
She already has thought of not causing harm to the humans and replacing them with her own, but rather she already has decided to let her kids to the adapting and question one another for it, yet what about the humans tho? surely the humans will think that this is nothing more but another machine BUT as days, weeks, months and years pass humans will probably start questioning this get suspicious of it.
Anyways her story became more deeper and will probably get more deeper unlike the slavery or politics one. So I won't be surprise if we end up getting a small sequel that revolves around her progress of partitioning and the future where Mc is already dead.