This is another idea of those who think two people can have perfect same fate. In other word, this come from those who are having the exact behavior of Indra, that is they don't accept their natural place in the game. To those, I say there is only one logical way for the war to end.
This war will end if and only if Indra and his descendant will accept that each person can work towards the goal he wants for his life.
See, it is the same theme as in Neiji vs Naruto. Neiji looked at naruto and himself, and concluded that he was better fit as shinobi than Naruto. Similarly, Indra and those who shares his ideal think birth gave them the right to rule over Ashura and those who are like him. Unfortunately, someone can be lame/mute/deaf at birth and become fine afterward if he meets someone who can give him help or knowledge that can unlock his potential.
This war was created because Indra refused to accept the new and reborn Ashura. While the village (Konoha) was the one who wanted Hashirama to be Hokage, Madara extended the war simply because he refused to accept that Hashirama was better than him. Similarly, the current state between Naruto and Sasuke is the result of Sasuke's fear to see Naruto surpassed him. In other word, Sasuke is having a problem admitting that Naruto is stronger than him.
Thus, as long as Indra and his descendant will be in that state of denial of the truth, no other solution will bring long lasting peace. This is why, there would not be two Hokages. This is why there will not be peace even if Naruto let Sasuke become the Hokage. Simply put, someone will have to prove to Indra and his party who is the true badass on the battlefield by beating the crap out of their sense.
PS: Please, don't put the coat of badassness on Sasuke. It is only for Hagoromo, Minato and soon Naruto. That coat has nothing to do with Hokageship.