I think they look good, if you make changes you might just post here to let us know you updated them.
As for bringing the rest of the group together, here are some ideas below. I'm open to others so please feel free to discuss alternatives and we have a bit of time as we are still getting the newcomers settled into the larger group.
Having Lexi pose as Mrs. Smith is an interesting twist, though it does not ensure them paired for breeding. The group has already split up all the other spouses, in the Stevensen's case despite the fact they didn't have children between them. One thought might be for Dr. Smith to declare that Lexi is infertile, which would buy them some time in keeping Lexi's true gender hidden. That would create the situation where perhaps Mei
@MsBloom is going to Lexi
@SMG9000 for counseling with the somewhat awkward goal of convincing her to breed with Dr. Smith her pretend husband. (Being asexual, Dr. Smith may be in no hurry for that to take place, but that is up to you).
Next up for pairings is Tiffany who I'm thinking due to the trauma of losing her husband is exempted from the breeding program and is also in counseling. With the miraculous reappearance of her husband, it is impossible to not pair them for breeding but of course she may already be carrying another man's child. So they get to work through the guilt and suspicions of what has been going on in the past week.
Keeping non family members from breeding leaves the opportunity of an extra Moltke daughter. My thought is to have the twins Elsa
@Shelob and Svenja
@dreamer both paired with the same man, probably Sani
@xavierrol (I know this is a hardship for you) since their children will be so genetically similar anyway (at least that is the rationale).
That leaves Erik
@Devil in the Details without a partner along with his already pregnant wife Greta
@AndNich123 , neither of whom are forced into the breeding program. Perhaps creating a bit of conflict for Dr. Smith to exploit. It may also create a bit of pressure to challenge the idea of Lexi so conveniently being infertile.
Another point to consider is that Psychiatrists are MD's as well so despite not having much experience on the medical side of things, Dr. Smith could be challenging Dr. Judy on her medical authority.
I know there is a lot to consider here, but I think it is deliciously fun to play out and see how it gets sorted.