Xenosaga Episode I: Reloaded is the Japanese re-release of Namco's smash RPG that features various gameplay tweaks, English voice-overs, and a myriad of other extras based on the American version of Der Wille zur Macht.
Reloaded also features a bonus DVD that includes extra video content and an exclusive look at the trailer to Xenosaga Episode II: Jenseits von Gut und Bose. Released in Japan only.
Reloaded is just the American version of Xenosaga Episode 1 with the addition of a few added costumes. Of more importance is the Xenosaga Episode 2 trailer footage planned for inclusion with the game.