Just saw an advance review of the new self-titled Dream Theater album that's coming out in 2 weeks. The review's from an overseas Fan Club (Norway). I was aware that the special edition of the new disk would have 2 disks (CD + DVD). However, in reading this newly published review, I noted that the reviewer specifically mentions that the mix is also available in DVD-A format. No listing/additional information available to confirm this on Amazon so take this as pure speculation so far. However, DT did release a 5.1 version of Systematic Chaos so perhaps they're again re-embracing surround with 5.1 and DVD-A ????
Review below from dtnorway.com
5.1 mix: The 5.1 mix is better in the sense of dynamics, much because a lot of the ambience that fills the song is moved around to the back channels. Vocals are also much more clearly placed in the center and is therefore a lot more audible. This isn’t a terribly active 5.1 mix, for the most part guitars, bass and drums are firmly situated in the front, with echos and reverb being placed in the back. Vocals are mostly center, except for some of the backing vocals (such as the callback of «enemy inside» in that song which is placed in the left back speaker). Keyboards and effects are much more fully surround though, with pads and organs covering the entire room, and effects jumping from speaker to speaker around the room. The totality of it is that this mix gives much more breathing space for the instruments, as much of that which causes the «wall of sound» effect is absent in the 5.1 mix since it’s more evenly distributed from different speakers. It also seems to be a mix more dynamic mix – if I switch to the 2ch mix that’s also available on the DVD, it’s much louder. I very much prefer this version of the mix. The 5.1 mix is available in DVD-Audio format as well as a 48khz 448bitrate Dolby Digital 5.1 mix for those that do not have a DVD-Audio compatible player.