Guarentee that trouble will come at the council meeting. The thing is, she would probably be a fantastic ruler if she can rally the nobles behind her. And if everything does go to hell, there's a good chance she can just teleport out and say goodbye to the entire country and go travel with Lucas.
I have a hard time feeling much sympathy for her Dad. As lonely as she is, her father has just been so awful for so long that I really don't give a shit if he wakes up or not. She may even be better off finally being free to figure out what she wants to do with her own life, rather than forever living in her father's shadow. For that matter, at what point has she ever said what she wants? If she could go anywhere, do anything, what would it be? Depressing to see a kid not have that.