Sad/Heartwarming if you know what happens in the future.
It really depends on how the fight goes, because if the Akatsuki survives long enough to find out Muzan is in full control, their is a chance Itachi can use Tsukuyomi and kill the 12 moons. Plus their blood art puts them at a slight disadvantage against Hidan and his ritual.
Why the extra?
"Kamui!"
*Guy disappears*
*Kakashi continues reading*
Around my arm
Mu, idk
Black/White Zetsu, maybe