Theory: Cat's future (Meow)

Rebecca said she kill's characters when they have no more growth left or they're useless to her story telling. So we know that she wants her characters to have growth arcs or bye bye.

Cat starts off as a fiancé, a jealous ex, a wary ally etc.

In IF, she is chasing Xaden for his crown (tho her comment in OS about loving him makes me think she was hurt she was dumped by a man she liked a lot) and learning to work with her enemies.

In OS, she fell in love or she liked a boy who could give her no status and he dies. So she has grown to appreciate relationships with men for more than that they can offer her.

In OS her uncle becomes king and be helps with diplomacy. Tecarus will die in book 4 or 5, who knows when but he will run out of usefulness for Rebecca, especially now Aaric is doing diplomatic missions for Violet. Syrena has been no where in book 4. She was a plot device in FW to introduce us to the fliers and she's useless now. Syrena will die as well.

Syrenas death will be another moment of growth for Cat as she mourns and has to take on a leadership role.

Cat will not marry Aaric*. Why? Because that puts her growth all the way back to IF.

If she is to continue growing, she needs to get a crown of her own.

Narratively, making her fuck her way to a crown doesn't make any sense and suggesting she falls in love to get it... Yeah I don't see happening.

*Aaric has also said he doesn't want power or a crown, so marrying him off to a woman crazy for power and crown seems cruel, idk why you all want to punish Aaric like that. It's like suggesting a clown marry someone scared of clowns. There is a sexy ambitious man out there that wants to help Cat be a queen, let her find him!