Hey there, first off welcome to the forums!
I'm pretty sure the likings of MP returning for a 12SS performance aren't that big, but one can hope.
As for the rankings:
5. Repentance - I like it as a breather during the suite, but as a standalone track it really goes on waaay too long, and it's just kinda there, not adding much musically IMO.
4. This Dying Soul - I pretty much like all of the songs on here except for Repentance, I just believe TDS is somewhat weaker than the following instrumentally.
3. The Shattered Fortress - Love this track, it used to be my favorite 12SS song, it just does the fusing of the previous songs perfectly, with an epic conclusion, followed by the very beginning of the suite.
2. The Root of All Evil - Can't argue with that intro, nuff' said.
1. The Glass Prison - Whenever I hear this name the first thing that pops into my head is "overrated song", but when I listen to the actual song I remind myself how awesome it is from beginning to end, never gets old.
Pretty sure this exact topic has been done about a month ago now that I think of it.