Is Y'shtola finally giving actual red death flags or am I just seeing stuff?

[Catwho]

I don't think they'll kill her off to be honest.

What I suspect might happen is that she'll find a method of travelling to the First and will opt to stay there, and take up residence in her former home with the Night's Blessed.

I agree that this is a more likely scenario. She made a promise to Runar, and it would be unfair to not let her keep it just to kill her off.

But having her live on the First and continue solving mysteries there? Especially since we're going to be trying to figure out a way to pump light from the First over to the Thirteenth to eventually fix it? Now that makes sense to me.