There are so many characters who they are dead in naruto. Masashi Kishimoto certainly didn't hold back at certain stages of the story, bringing long sleeps to many popular figures and various antagonists. Because of this, They didn't appear in Boruto: Naruto the Next Generationsa few years after the end of the first story.
Konoha is in a crisis right now and help from characters of this caliber would certainly come in handy despite the advanced age of some. Speaking of which, illustrator Norridzuan has one thing in mind: like the dead characters in Naruto at the time of Boruto? Keep in mind that Boruto was born about four years after the Fourth Great Ninja War and that the events of the manga and anime take place when the protagonist is thirteen years old, therefore all characters are portrayed as being about twenty years older than they were then.
We start with Minato Kamikaze, visible with some wrinkles, followed by his wife Kushina Uzumaki. Then Neji peeks out, who is about the same age as Naruto, so thirty-five, and is there to close the front row Jiraiya who should be almost 70 years old. Go on, there is Itachi Uchiha, Obito, Rin, Shisui, Yahiko, Nagato, Konan and finally Asuma Sarutobi. Did you recognize them all? And do you think they would have looked good with those features in Boruto?
This is what Naruto's Akatsuki would look like as Bleach's Arrancar Espada.