IF YOU READ BELOW YOU MAY BE MAD BECUZ IM REVIVING A SPOILER below that line:
_________________________________________________________________________ everyone improtant who was hurt (rukia, renji, byakuya, and ichigo) all get healed by one of the 5 badass of soul society only them since they are luetenients or captains or ichigo lol
and dont worry if u heard or read about kenpachi being killed or ass kicked, he fine no serious injuries thus wasnt taken with the rest who were improtant. if you are reading i believe around chapter 519 to 521 they do something with well lets say plan to do something with kenny. this plan will be takin by unohana pretty much her 1st major role ever, but the main spolier is that you find out that way before kenny unohana us to be just like him. just as powerful and no control over it. why u think u never seen her do anything. they were able to train her to have a sword release and bankai making her out of this world powerful and they plan to do this to kenny but kyoraku thing its impossible becuz apparently the last person who tried to train him gave up in that day he took resonsibility of doing it. so unohana now going to do it seen well she went thru it in the past.