Maybe they might only have a physical fight without using crazy power. If Sasuke become good and don't want to destory the leaf village, than they won't have a fight to death match and they won't use full power.
Even though the frog sage said that Naruto will fight someone with a great power in the eye. Hey! That can be referring Madara, Nagato, or tobi. After all, they all have the most powerful eyes when fighting against Naruto. These eyes are still strong than Sasuke.
Last, this will be a friendly ending if they just punch each other out.
