Hashirama - Life & Death
So according to the way the chapter ends, Hashirama was left with a choice of killing himself or his brother so that the world can possibly become peaceful like he dreamed of one day... well here is my theory on what will happen, and it won't be too detailed due to me needing to sleep soon.
I believe he will kill himself for the sake of peace. Now I know that will raise a bunch of questions as to how he was there to do things after the big Madara fight, well here is my answer to that.
What if when he killed himself, Tobirama couldn't handle losing his brother which is what influences him to create the Edo Tensei. He revives his brother Hashirama with the technique (no clue on when, it would possibly have to be a time when Madara was around to see it, because that's the only way he could have known how to stop the technique as well unless that was a fail safe that Kabuto had put in his memory.)
Anyway, that's my theory... hope it doesn't sound too stupid.