It does makes sense that the sultanate back there and the temple too would wish for her return, after all, they do turn people with royal blood into temple whores to keep them out of the game, and having Cait sperging out outside, with the danger of having her anti-baby magic tattoo removed, opens the door for a possible heir out of their control
Some things that one could deduce are tied to a logical chain of events ends with them being conveniently tied with no effort, for example, Evelyn's future depends on two things, if you give her dragon powers or not, and whatever you do with the paladin, and in both scenarios there's no actual danger because she's a non entity for everyone outside of Hawkethorne. We could say the same thing about Cait as there might be an interest with Salwah getting her back home, as I imagine other people related to the temple would want the daughter of the old matron back, so she can resume her duties. Instead she's in a similar position as Rindo, a non entity now that she's tied to a nobody who happens to be around, everyone related to this issue just accepting that she's here with the champion and therefore, she's of no consequence whatsoever
I wish we could at least get the choice of letting her at the temple so she can do her slut thing, I mean, imagine if you were invested in her, decide to keep her and then give her the temple anyway, then her role there consumes her while you as the champion do hero stuff, but she's not part of that anymore, her big adventure ends with Cait becoming her own mother
I'l like to imagine her attending her duties and wondering when will you come back, but you're not like her dad, so you won't, instead she must ask around, Quin telling her this and that, visiting less and less each day now that he's also spending more time hunting down Tollus's people (once again, let's imagine Quin isn't cringe in this scenario), and, everything the two of you set together to do is resolved, Calla is back, the demons have been destroyed, the world is at peace, yet the champion never returns to the temple, happy to let Cait have her dreams, her temple, her duties to Mallach, as thats the proper thing to do, after all, the champion is pretty good at getting others what they want and need, and Cait would have to endure as she gets older, always wondering if her dream was worth it, but maybe that's too cringe, and Savin would do something way better like, you become a super whore too and Mallach fucks the two of you into a cock induced coma