While Sega’s official website can only project a first quarter 2004 release for the multi-platform Sonic Heroes, Gamespot has revealed an estimated time of arrival (ETA) of January 15th, 2004.
Source: Gamespot
Gamespot also released a small description of the future release.
Sega’s legendary mascot makes his historical multi-platform debut, and this time the adventure comes with several all-new gameplay twists. Control 3 playable characters simultaneously, using Sonic’s speed, Knuckles’ power, and tails’ ability to fly as you explore massive worlds. Team-based gameplay lets you as one of 4 teams for a total of 12 playable characrters, each with their own unique signature moves. Each team boasts multiple special stages with unique missions, as well as their own story using each character’s special powers. Sonic and his friends combine forces to battle the ultimate evil.
So far, no other video game retailers, Amazon, or Sega have shed any clear light on the United States’ expected release. Expect an announcement confirming or denying the projection within the months.
Source: Gamespot