I understand your line of thought. For me Konohamaru was hinted for having the same will as Naruto, if that is enough for a Part 3 based on him.. I have no idea. Ashura transmigrants have warm Chakra, which means they are good, benevolent.. exactly like Hashirama was and Naruto is.
I don't think that if they clash will be because of the Hokage title but instead because of Sasuke wrong ideals on how to lead the Ninja World when true peace can only be achieved when everyone understands each other.
I'm really curious (like everyone) to see how Kishi is going to wrap things up, anything else that we post of try to argument is just a prediction, don't forget.. Kishi is the biggest troll ever.