I think there will be some Blaze era songs left on there, and Dream Theater is going to be their muse for this album. It'll have 3 Blaze songs on it, 1 Nicko song, and a 43 minute epic (Harris/Gers/Murray), for a total of 5 songs.
They will have some b-sides released that are all written by Steve, and they will only be availiable on the 43min b-side (cause they will be 21-22 min each) -- they will have to be special edition, with Riggs artwork.
Adrian and Bruce will be taking this album off, writing wise, because they will be working on a new side project.