You know as much as I do.
I visited the ball of waxx website and couldn't find any samples from the game but I saw in their portfolio they have a listing for credits writing music for the Tron 20th anniversary commercials.
Yeah, I completely agree with you. I hope they keep the same style of sound that helped give Tron it's individual characteristics. Then again, it takes place 20 yrs. later, a different time, a different place, so don't be too surprised if the music comes from a different place all its own. Either way, I have faith that the structure of sound will only compliment the game. Music in games has now become a much higher priority than it ever has when it comes to quality control, 5.1 systems, etc.