So removing Katie and Helen as blood relatives might be Ocean being Ocean, as the story remains unfuture proof while Leia is related and a LI.
Good points
I'll only mention a few things I think, as we've already gone back and forth on the others enough to be clear - Leia's 'respect' for Miru: as opposed to the way Leia treated Dana and Mon, Leia ignores an actual gf, then asks Miru to teach her (yes, the fight is easily showing she sees Miru as a rival). Either Leia has learned to hide her intentions (of course she has), knows that childish deflection and rumours don't solve things (of course she has), or she doesn't know how to deal with an actual rival, and Miru's messed up her plan to get William back to Wollust. I can't recall there being any idea that Leia would know about Miru until William arrives back, so some of Leia's attitude towards him is from him not being single. And by respect, she clearly respects Miru after the fight, like she would respect a lion. Prior to the fight, she is cold, but not specifically antagonistic, looking for ways to separate her from William. It could be that she is shocked to consider William as taken, or that she actually wanted him back primarily to deal with non-lewd issues. It's the same way she expects William to seduce Mon - jealous Leia wouldn't be that calculating, but business, dead-inside Leia is more concerned about getting advantage over her enemies or hindrances, and will use William to further her personal goals. In this sense, she totally disrespects William and sees him as an underling.
I think the way Leia disrespects William (and I mean underestimates, thinks of him as a mathead etc) will have some interesting ramifications. William also thinks of Leia as who she was, but he's keeping his eyes open and searching for the differences. Their meeting at Leia's house will be interesting. I don't think it will be a pure reconciliation, I think there will be unresolved tensions, even if we'll know more about many things.