Sorry to all you Miyuki fans...
I think she'll have what she really wants in the end... She'll be the one to give Tats his "freedom" and that is what she craves. She'll set him up in a high-handed, glorious way. And she'll be the Yotsuba head. And she'll be so beautiful, powerful, and "ice-queen"-like that she'll be a mountain-mover in the magical world.
Is that better?