kid sekai huh, I'm very interested to see her interaction with Moyo as it may finally confirm that they aren't mayas at all - but that the children of the clockwork simply have her tormented image. Sekai would never associate with any Maya after all. That's on the offchance that this Sekai even exists of course, but if she's interacting with Moyo - that would also be a sign that she exists.
All in all, I don't think that will be the purpose of this scene - but we might gain a lot of knowledge about this Sekai's existence based on the fact that she interacts with Moyo or not. Since Moyo isn't a figment of Akira's imagination, it would be the first (can't recall another instance) where Sekai would interact with another being and have an actual conversation (because with Yasu we have a cut off before that is confirmed).
Yep, this could be huge!
I don't see how Kirin would even mind being ""assaulted"", and even if she did, she assaults people as well - it's not even something she has the moral grounds to debate. I don't see what Pareidolia would gain from that either. I think she will be fine, even though it makes logical sense that Pareidolia meant her as being "I'll find someone that does", in the sense that she's the Kanda sister that would be up for that. But, again, how would that help Pareidolia? She's very much willing to have sex with him whenever and with whoever.
I find it hilarious that Sara's strategy for getting married to Akira was "I can be the mother your daughter needs!", and Maki's apparently is "I'm free use for you whenever and wherever you want me"