I think he will attack Obito and Madara and then fight Naruto but just to see who is stronger... then after wards i dnt believe Sasuke will return to the Leaf Village, I think he will just wander off and never come back.
You can use Chidori, the problem is that it is a straight line speed attack and without the Sharingan, you can't read any counter attacks so you could end up dead before using it a second tiime.