Unfortunately Galaxies failure, and Blizzard's success seem to show a mass appeal game is never going to work like that. People don't want risk vs reward they want fun vs time.
If I'm right about how I think they're doing it, then each class having extensive unique content and wholly original mechanics, some people simply aren't going to like how the Jedi plays, and as all the classes will progress at the same rate through the semi-single player content, then initially Jedi is nothing more then another class. Jedi are going to fill a specific role, and undoubtedly be more popular, but when the luster fails, people will move as they always do to the new class getting the most attention.
Make each class unique, and balance at least the appearance of progression to be equal, and ultimately the game will be homogenized down to nothing.
If interested in just keeping the Population of Jedi down, well, that's why this game is in Old Republic and not Episode IV
