Theories

Kyelina is secretly a dragon and Finny will die.

Seren will become a necromancer, Staniel will marry Abby.

Xeville will get a new eye, and Yllatrana will go to rehab and sober up.

Disciples of Rosewood's (possible) connections to the main characters:

Greed - Seren

Envy - Kyelina

Sloth - Staniel

Pride - Finvarra

Gluttony - Yllatrana

Finny is actually a goddess

Staniel secretly left sleepa to taste all the different ales, he wants to become a professonal ale taster.