What was the intent for the male Sam experiment? Depending on what you were thinking, the general idea could be repurposed - say, for example, Samantha being temporarily gender-bent. It might be a chance for her to see that she was actually pretty feminine in the first place. I have the impression that she feels a bit insecure on that front.
Anyhow, Badon should be a pretty good chance to dig into lore and how the characters relate to the world. For example, a food stall can reveal that Maya's beastkin nose is too sensitive around certain foods, maybe a festival that celebrates in honor of felled angels, and so forth. I am guessing that Metatron would feel a bit disturbed at (false?) remains being displayed, much like real-world saints.