When I saw the title of ep. 5, I thought of Kurosawas' Kagemusha.As Lucas was heavily influenced by the films of Akira Kurosawa when writing the initial Star Wars (see "The Hidden Fortress"); finding Japanese-style swordfighting within the Star Wars universe is no surprise. I think I'm only 3 episodes in, but I'm finding this to be a little more competent than the Boba Fett or Obi-Wan adventures. However, having never seen any of the animated series, I'm probably missing all the easter eggs.
But the Shadow Warrior in the film is a political double, so no tie in that I can see.