first of all spoilers. secondly i can see where he is coming from, wanting to ensure his brothers will/dream lives on. however it will be hard as he is now a criminal.
Actually, a lot of people were complaining about Itachi or Hashirama turning Sasuke good instead of Naruto so this is Kishimoto's way of fixing. Naruto will be the one to put Sasuke in the proper mind frame
Heh I had the same idea, Sasuke wanting to be Hokage. Kishimoto wrote himself into a corner when he turned Sasuke good with the Hokage and so he needed a way for Sasuke and Naruto to have a final battle, this was the safest choice for him to get that, methinks.
When he said he wants to be Hokage I was like WTF....
But when he said all this current war and all is because of Hokages and to avoid such wars in future he'll be Hokage I was like.... WTF.... This damn brat is so fat headed....