Interesting. Sasuke should be rageful and emotional. That suits his character better.They need to die in a good trappy mysterious way opening new directions to plot like jiraya did. With them there, no threat will seem big enough to make boruto interesting. If they are restricted from participating that will just lower quality of boruto as a series.
Also another thing is possible, that is sasuke again turns evil somehow and leads this new enemy organisation killing naruto. Just like how people thought minato was the leader of akatsuki back in the day.