It'd be tragic to the character if they did that. She hasn't had much time as a hero. If they keep doing stuff like that, it'd be difficult to categorize her as a hero. I'd rather the Scarlet Witch title being handled as is and just be tied to the power. That she powers herself up at times like an anime character. Chthon could be a villain of her's but I'm not here for possession. When they just had her manipulated by Agatha.
I want her to instead study about her powers and controlling them and deal with loss in a healthier way than the show had her do it.