I never said she won't have a fix, I said it wasn't planned originaly because she wasn't even companion at the very begining. That was her concept, then it was changed to companion then to origin so quite a lot of changes and it shows considering she barely has any content (compare it to the whole dungeon for SH or a creche of Lae'Zel for example). That's why I say it's not likely they'll just patch some quick fix with Dammon, Gondians or whoever. If the change is coming, they'll likely improve her whole questline so she feels like an actual origin not side character. In short, they'll rewrite her concept
I see the argument that they'll add more to her quest like with shadowheart and laezel. Maybe make avernus a full area with the expressed purpose of finding a cure within avernus itself. But you keep ignoring all the components within the game already that point to a fix by saying well they would've just added it or well the enriched infernal iron could be anything. I do hope you're right and instead of adding in something small and keeping her questline small they add something large like the dungeon or the creche. And in the event they were to add an entire area like that it would take quite alot of work, something more than a patch I think. Maybe that'll be a dlc or bundled with other companion add ons. That being said though I'm not sure why they'd need to rewrite the whole concept that just doesn't make sense. Adding on a whole area for her to get the cure or fix from that is something I could see if they want to make her feel more like an origin character but that wouldn't require a rewrite at all. I'd love to hear the reasoning for the rewrite cause I'm seeing 0 reason for it