Hmm.. still making me watch more without impressing me to any great degree.

I laughed at the Laputa and Howl's Moving Castle references.

As for the theories, we don't know how Yuri died yet.. so I'm not sure about this being a coma world. However, the possibility does entertain me.

As for Isarawa, I'm fairly bought on the idea that she's performed her "song that could save a person", thinks she's accomplished what she wants to do in life, doesn't resent any unfairness anymore, and moves on.

The will to keep living theory is a bit shaky I think, since she's now mute, she wouldn't be able to live her life as she did anyway.