A Goodreads user asked Gail Carriger:

Are you going to write another book in the Finishing School series about what happens with Sophronia and Soap? The way Manners & Mutiny ended left me wanting to know what happens to the both of them after the dewan gives Sophronia her new job. Does Sophronia and Soap's relationship grow stronger?

Gail Carriger Not where they are main characters. They will show up as side characters in some of the novellas, they are already occasionally mentioned in passing. It's likely they will play a significant roll in Sidheag's story, if I ever get around to writing it. (I hope to, but it may take a bit.) I never rule anything entirely out, but right now they aren't speaking to my muse anymore as main characters so...

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