Im positive that naruto will controll all the tailed beast and use diffrent rasengan variations along with kahe bushin and sage mode pretty strait foward. Now Sasuke would only make sense if he assended beyond the clan name and actualy unlocked his occular powers . Im talking about sharingan...
The byukagan was never really reached into its full potential. Seing that tai justu is madara weakness I feel like byukagan is probably what he needs. Of course he can still use ems too making him all more deadly