All i know is,

Star Wars: REPUBLIC COMMANDO
Developer: Lucas Arts
Publisher: Luacs Arts
Release Date: Fall 2004

Star Wars: BATTLEFRONT
Developer:Pandemic Studios
Publisher: Lucas Arts
Release Date: Sept. 21, 2004

Now what i gather is that they are both Mass Multi Online Playable First Person Shooters (urghhh), just ran out of breath I also know that they will both be on Xbox live . Now i don't get it, i like SW games (currently playing K.O.T.O.R.,) but how in the heck are they going to pull this off without these games of the same genre over lapping?