As I've said before, the 220+ War arc should've been trimmed to make room for more story, and not the never ending curb Obito and Madara layed on the Shinobi Alliance.
One arc/story I would've liked to have seen would've been Sasuke's trial post war. We know Kakashi and possibly Naruto spoke in Sasuke's defense for his freedom, but it would've been so cool to see Sasuke defend his actions and condemn publicly the actions of the Kage and the Shinobi System.
Kakashi's ascension to Hokage would've been nice.
How the 5 villages actually put their differences aside and formed a union.
etc.
One arc/story I would've liked to have seen would've been Sasuke's trial post war. We know Kakashi and possibly Naruto spoke in Sasuke's defense for his freedom, but it would've been so cool to see Sasuke defend his actions and condemn publicly the actions of the Kage and the Shinobi System.
Kakashi's ascension to Hokage would've been nice.
How the 5 villages actually put their differences aside and formed a union.
etc.