What we got from the live:

• Sjm said we'd learn more about Azriel's shadows (like if they're sentient) "in Azriel's story." So that could be a hint-hint that he gets his own book.
• Gwyn isn't a child :) Sarah's reaction when Steph asked the question:

so to the people that said they were uncomfortable shipping Gwynriel for that reason I guess you can ship them now because again, GWYN IS NOT A CHILD. "God bless all of you" is what she said when Steph told her it was a theory.

• We will get an Az singing scene. That could be another hint hint towards Gwynriel. (God I'm on cloud 9 rn).
• Sleeping beauty is boring and she doesn't wanna expose her son to a story where the girl does nothing. (Her words not mine). So I think that kinda crushes the Sleeping Beauty retelling for E\\riel.
• The friendship bracelet idea come from her own personal experience. (I guess that means SJM is childish because this experience was only a few years ago).
• We can expect more of Gwyn. (She said everytime she writes Gwyn she'll imagine her in pull-ups and pampers because of the bs theory that Gwyn is a child).
• Sarah hopes sassy Lucien will make a return, but at the moment he has loads of shit to sort through.