So me judging the update from 3 months of previews and dev logs talking mostly about one thing is presuming, then I want you to tell me from where do you get the its an 'all girls update' from
each to their own it's just my my opinion that previews hold no weight to what is going to be in an update. If you read my post in full I said it's a combination of devlogs and what I read from discord either froim Nyx or others. Maybe im too trusting but i tend to trust what i read from Nyx or others when it comes to what a dev has said is in X update cause maybe im missed some info.
I do know it's going to have at the very least Erynn , Val , Nikki / Cara and at least Layla on a Elena path if Nyx doesn't split it in 1/2. So yeah there is nothing that has confirmed Elena, Iris, Mel or Alexis yet. However I do think that alone makes it it sounds like an mostly all girl update to me and not a update focused on 1 or 2 path but that's also my opinion , like I said it was originally never stated it was a fact but my opinion.