Yeah, they're highly unlikely to kill off Y'shtola, given that she's the stand in for FFXIV where other titles are concerned. She's also - in my opinion - one of the more nuanced Scions, given that she wasn't afraid to call out Merlwyb for the hypocrisy involving dealings with the Kobolds and Sahagin. I would like it very much if she served as the voice of reason to call out her allies if they seek to go too far during 4.0 and beyond. She recognised the merit in temporarily teaming up with Regula, after all.