New music in The Lost and Damned?

Do you think there will be a good amount of new tunes for the GTA IV expansion The Lost and Damned? If so, what artists/songs would you like to be included in it?I ask this because I, for one, am really fascinated with the GTA radio stations and their variety, so I hope they choose to add some more stations for the expansion. Hopefully alot of heavier music.