I'm sure that most of the songs that come with the game will probably be some form of rock. But I think that downloadable content gives the developers so much more leeway with the options that they offer. I think there's a great opportunity to reach out to more obscure genres and give those fans just what they're looking for - while introducing others to new music at the same time.
What do you think? Will we be seeing a great amount of variety in the downloadable content or merely more rock songs by the same artists and new ones?