I predict that kakashi will return next chapter because he has been supplied with kurama's chakra. He will return, then probably have his wounds treated by sakura.
To people saying that kakashi is dead: I submit to you that kakashi is protected by plot shield. having a character almost die (or in kakashi's case ACTUALLY die, it would be poor writing to kill them off again.
HERE IS MY WAGER: If kakashi comes back next week, everyone who views this thread should ***** me.
If i'm wrong, i won't make a single post for an entire month