Yep that is very true, Naruto was given the full Yang part and yang is physical energy attributes, and Yin stands for spiritual energy which is what is used for genjutsu and creating the susanoo. so it is weird thinking about what sasuke can do.
However, I think that you all have it all wrong, Naruto answered the Hermit SAGE that he wants to protect everyone and his friends which is why the sage gave him that power, so therefore sasuke's power will depend on his answer. Since him and Naruto are Yin yang then I will guess that he said t the Sage that he wants to end the war by killing Madara, and I assume he would have the ability to stop the heart, since Naruto does the opposite