Perhaps in this fanfiction, Naruto creates a world where there is no more ninja warfare. He could use his influence and power to bring about a new era of peace, uniting all the ninja clans under a single harmonious rule. This would involve a lot of diplomatic efforts as well as using his combat skills to subdue any potential threats.
One common theme is redemption. Naruto often tries to redeem the world from its past mistakes or dark elements. For example, in many fanfictions, he aims to end the cycle of hatred that has plagued the ninja world for so long.
One possibility is that he could rewrite his own adventures in a more humorous or self - deprecating way. For example, making fun of his early failures in ninja training.
The new bloodline could also inspire new training methods among the existing clans. If it has an ability that is based on chakra control, other ninja might study how it works and try to adapt their own techniques. This could lead to an overall evolution of ninja abilities in the Naruto world. For example, if the new bloodline can create chakra constructs that are more solid and durable than the ones created by the Yamanaka clan's mind - body transfer technique, the Yamanaka clan might study the new bloodline to improve their own constructs.
His friends like Sasuke would most likely support him. Sasuke, having walked a long path of redemption, would see Naruto's vision of an empire as a way to finally achieve the peace they both have been longing for.
The purpose could be to protect the weak. Naruto has always been about protecting those who can't protect themselves. So his organization might focus on safeguarding small villages or groups that are vulnerable to attacks from rogue ninjas or larger, more aggressive villages.
His new taijutsu could change the balance of power in battles. If it's a very powerful form of taijutsu, it could give his village an edge in conflicts. Enemies would have to find new ways to counter his moves, which might lead to a shift in military strategies across the ninja world.
Well, in such a fanfiction, Naruto might discover a new chakra ability that allows him to create Kirin. He could be in a tough battle where his usual jutsus aren't enough. So, he taps into some hidden potential within himself to form Kirin. Maybe he combines his own wind - style chakra with some newfound lightning - style chakra he got from a special training or encounter.
If Naruto creates a lightsaber, it could be related to his connection with Kurama. Kurama's chakra is extremely powerful. It's possible that this chakra could be harnessed in a way that can mimic the energy source of a lightsaber. Naruto, being the creative and adaptable ninja he is, would then figure out how to shape and control this new form of energy into a blade, much like a lightsaber. And he would surely use it to protect his friends and the Hidden Leaf Village.