Bloodline traits give Naruto characters access to deep wells of power, but some characters don't need them at all.
Characters at the end of Naruto: Shippuden are significantly more powerful ... and dies doing so. Kisame Hoshigaki is one of the first members of the Akatsuki to appear in Naruto.
TYBW anime, Masashi Kishimoto could potentially expand on The Seven Ninja Swordsman of the Mist as a Naruto's spinoff project ...