Except they already did all of that. They called back actors, made a cutscene, added new option and new dialogues in act 2 and 3. And it was all to try justify avernus ending being somehow unavoidable and the only option to survive as the "ending she deserves"
I think you are not right in this. Few added lines and new cutscene doesn't proof anything. It just make the Avernus ending more polished and complex. I just saw the new dialog in act1 few hours ago during my second playthourg and there is nothing about she has to die. She only tells you her engine is hot and we better find quickly Dammon and my answer was. Ok, we will find him. Nothing more, nothing less. It is just added conversation to make her story more juicy.
Until they disproof all possible cures in act 3 we have now available and tell us that she cannot be cured, then we still have hope for new ending and story in the future (DE).
