So the other, less immediate thing (underlining that, im not trying to immediately do anything this is an IC longterm concern) is Wrathion would want to know if there's a way to invent a more long term solution for Irenia. Given their party is... trying to leave this world? It's not good for her to be anchored to one of them.

I'm assuming Irenia might know enough to tell him -- does she need a person to be anchored to or or just a power source running to fuel her undead state? If Jon Snow vanishes, does she deteriorate or just auto snap to someone else's control?

(Related: I'm not clear from the description, is she actively chosing to attach to Jon or is it somewhat involuntary?)