The easiest way would've been open ended. Lol It would've ended just fine if it told what became of the nations and finished with Naruto's inauguration and his signature grin as he puts on the hat. So, No pairings, no future kids yet, or anything like that. It felt like it skipped too far anyway. But, I guess it is to try and get people to watch the movie to fill in that gap. But, that's just my opinion.