Thoughts on Hooky-Marionetta. Some spoilers!
I know it probaly won't happen, but I would love to see the characters from Hooky interact with the characters from Marionetta. There are so many possibilities, but the ones I'd enjoy the most are:
Since Dani and Nico are spreading the word and building new bridges between people and witches, I'd love to see them interact with the members of the circus during this time in the story, but I'd especially like to see them interact with Sahed, Rainah and Julia.
I'd also be curious to see Dorian and Sahed interact, since, if I can recall correctly, Dorian had a lot of inner conflict about how he felt about non-magic users, and he had a lot of trouble making friends outside the people from home, which reminds me a little of Sahed in this way. Things weren't so black and white in regards to racial relations in Hooky, both did terrible things and sought revenge against the other, perpetuating a loop of voilence. I t's been a while since I read the series, but I'm making my way back through. Anyway, this is just all to say I remember it being really hard on Dorian to realize that yes, there are terrible non-magic users, but there are also terrible witches, and you really have to judge each person individually and not hold them accountable for the sins of others. You catch more flies with honey than with vinagar, so to say. Maybe knowing Dorian was coming from a somewhat similar place would help Sahed learn how to convince the other circus members to see the plight of his people.
I would love for Julia to get to talk to Monica and Will. I think there's a lot they could share with her that would help. Monica had prejudice against the witches initially, and she overcame it, even becoming a witch herself. Will grew up with suffocating expectations and sense of duty, both to his father and kingdom. They both know what expecting an arranged marriage is like. They know what it's like to fall in love with someone who would be very difficult to be with due to the social tensions and wars being fought between their races.
On a lighter topic, I think Monica would totally get into the shipping! I remember her trying to be her friends wing-woman, and her advice always seemed to fall flat, if not cause disaster (the love potion, telling Nico to button his shirt). She would definitely get into all kinds of romantic high jinks. Her and William's marriage situation also might give Julia a heart attack.
I'll bet Kamille would love to go adventuring with Mark and Aisha.
These are just my personal thoughts and opinions. These are just a few that have crossed my mind. There would be lighter interactions too, I think, but these are the ones that my brain has been latching onto. I'd be interested in hearing anyone else's if they felt like sharing!
If I need to mark this spoiler, let me know, I am new.