I doubt Sasuke would ever go back to Konoha. He might figure out revenge isn't worth it, but that's about it.
Options for him (you pick):
1. Die (sadly, most likely) (be barried in Konoha beside his parents)
2. Disappear and become Otokage (no one knows it's him)
3. Disappear and Become a traveler
4. Be sealed up by Naruto somehow (so Naruto doesn't kill him)
Options for Naruto (you pick):
1. Become Hokage (duh)
2. Become traveler and write Jiraiya's books (may or may not let people know he's alive)
3. Die (also sad, but possible)
4. Be sealed up with Sasuke (rds?)
5. Disappaear and become Amekage (very unlikely, but slightly possible).
And if Naruto dies or becomes Amekage, Kakashi or Neji takes over. And Konohamoru after one of them.
I personally believe Sasuke will die and Naruto will become Hokage.
Which choices do you pick (you can make your own two choices as well).