Like i've said in the other thread, since Hashirama got stabbed by the black rods, it's possible he would make Hashirama his ally against SA. In this case probably Sasuke and Naruto would be responsible to their defeat, a way to show how they were surpassed
Other possibilies that come to my mind
- If Obito does die, Madara would eat Minato's Rasen chourinbu kousanshiki. I'm sure of it
- If Obito doesn't die, he would be responsible to Madara's defeat for one reason or another playing a huge factor while fighting side by side with Kakashi, something that was foreshadowed and should happen unless Kishi is even worse a writer than i thought
Make your choices now, because you're gonna be committed to it until the end of the manga when it all is said and done!
I'm going for the "Hashirama Sacrifices Himself and Takes Madara With Him" choice, because it's closest to "Hashirama and Madara vanish together and become part of the God tree to watch over the Ninja world as one".