Don't know if any of you guys saw this, but Mangini tweeted about transcribing two monster songs for the 2017 tour, and I'm pretty sure that "monster" refers to long/epic songs. I first thought about ACOS and/or Octavarium, but now they've confirmed the IAW tour, i'm almost sure they'll play ACOS.
I'll leave the link to his tweet here: https://twitter.com/ManginiMike/status/798421746638618624
Maybe it will costs too much time in the setlist, but if MM is talking about 2 "monster" tracks, I think that probably these are 2 songs on the 20 minutes (or more) mark. And MM already transcribed TCoT. So, maybe ACoS (I guess it's a safe bet) and...Octavarium or ITPoE or ... A Mind Beside Itself or... 6Degress
Or maybe the second monster track could be around 15 minute mark, which leaves open to a lot of "small epics" not played by MM, like Voices, Lines in the Sand, Home or ITNoG. We'll see.
It depends on what will the other set (not the full IAW album) be. Like you said, ACOS is a safe bet
I remember I read an interview with Jordan where he said he wants to play more of SDOIT again, but I don't think they'll play the whole 2nd disc.
Also, James said on another interview, before TA was released, that he wanted to sing Take The Time, TMOLS and Disappear again, so we might get those tracks as well.
ITPOE is one of my favorite DT epics, and very underrated imo, and it would be unreal if they played it, but I thin it's very unlikely