It strikes me that Lily is the one driving the battle anyhow. Stark doesn't really want to fight. He wants to go home and sleep because he doesn't see the point in doing it. So I guess there's some possibility of it? A small one.

Also...Rose and Love are far from out of the game too. They're a bit dusty and ragged but they've not lost the release forms of their weapons and we've not got them to bankai yet, either.

...I have a feeling something bigger is definitely in the offing O.o