With a series as long as Naruto, spanning 700 chapters, much care and planning were taken to make the manga as cohesive as possible. From the beginning of the series, Masashi Kishimoto demonstrated his incredible prowess at foreshadowing and hinting, and his subtlety makes him one of the best in this technique, alongside geniuses like Hajime Isayama and Eichiro Oda.
https://screenrant.com/naruto-best-foreshadowing-prove-series-was-planned/