They announced Perfect Insanity as their next single on their official site.  Also, Indestructible has not gotten radio play, and this guy hasn't provided any references.  I wouldn't trust it.  Also, the song Parasite is available on the Japanese import version of Indestructible.  And the song "Forsaken" is not a Disturbed b-side, as Disturbed had nothing to do with it.  Draiman was invited to provide vocals, but Disturbed didn't write the music, or even play it.  It wasn't recorded during an album recording session, and it wasn't on any albums or compilations, only the Queen of the Damned soundtrack.  I'll repeat this Disturbed did not perform Forsaken.