Most of the Itunes stuff is Uematsu's, which is why I think it'll go bye bye lol, even though I don't want them to >< Soken's tracks are mostly the 7th Umbral stuff, like Moogle, Garuda, Darnus, which will most likely stay as they're "theme" songs, with the exception of Darnus since well...he's dead

It's been stated in the past that we'll have a mix of 1.0 and 2.0 music, but as to which tracks are going and which are staying still remains to be seen. Then there's the odd placement of 1.0 tracks, such as job quest music for the new levequest...made me scratch my head the first time.