Regarding this, something in particular has been bothering me for quite a while. Akatsuchi hasn't been seen around HQ for a long time, ever since Onoki left HQ, he has been gone too, and not seen on any battlefield. What is his potential? He was with Onoki at the kage meeting, so he's probably something, and he can fly as well.
He could possibly still be at HQ, then he'd be dead, but might serve a plot twist saving some of those guys.. I also though Ao would have a different role than dying like that, but meh, dead is dead, at least shikaku and inoichi are dead, we can't say for the rest yet, but it's most likely that they are dead.