How do you know?
Yugi from Yu-Gi-Oh is the main, yet in Yu-Gi-Oh GX Yugi isn't the main anymore and in the new series he doesn't appear, name of show or being main character doesn't mean he is immortalwell Naruto will never die since it's his show. :Sparks:
You're talking about things that will never happen. Kishi is the writer & he's stopped--his word on the story is the only one that matters. If you state anything other than what he's put down as far as story its fanfic at best if not complete speculation.
Unless they decide to kill him before then
Yugi from Yu-Gi-Oh is the main, yet in Yu-Gi-Oh GX Yugi isn't the main anymore and in the new series he doesn't appear, name of show or being main character doesn't mean he is immortal
We are shown everyone dies sooner or later unless they are immortal like Kaguya, even Jinchuuriki such as Hagoromo and Mito dies with old age.
It was stated Orochimaru body which is a zetsu doesn't need to drink or eat and doesn't die from aging.

Someone said it. Himawari will watch over NV for eternity.
Too bad Sasuke won't die though. He has the Rinnegan.
Too bad Sasuke won't die though. He has the Rinnegan.
Yugi from Yu-Gi-Oh is the main, yet in Yu-Gi-Oh GX Yugi isn't the main anymore and in the new series he doesn't appear, name of show or being main character doesn't mean he is immortal
We are shown everyone dies sooner or later unless they are immortal like Kaguya, even Jinchuuriki such as Hagoromo and Mito dies with old age.
It was stated Orochimaru body which is a zetsu doesn't need to drink or eat and doesn't die from aging.