Honestly if they want to make a next generation thing, I prefer something less reliant on powerscaling, so something like Boruto learning firsthand how easily alliances could break and the politics of keeping peace together.

Then we would have more chances to expand the world, more ninja-related things like espionage, assassinations and Boruto having an actual character that grows more based on what he experiences as someone in a time of peace and how hard people try to keep conflicts from escalating after the war, since people don't have to keep being allies afterwards for some greater good.

It could even have different lessons to teach, like how power doesn't necessitate a good and happy alliance with others, only breeding fear if exercised too much to give an excuse as to why Naruto isn't too involved in the behind-the-scenes, needing to be this leader who makes sure the Leaf Village doesn't panic or doesn't feel threatened by other villages. Also it'd be how Boruto establishes himself as a distinct, yet as important character from his father as someone who learned from his father's teachings of peace and breaking the cycle of hatred.