Well, conceptually you have a point, but simply music-wise I think it would work even better. The intro has an obvious "this is the BIG ending" feel to it, and the whole ending is really monumental, I can just see it as the closing track that way. And also, getting more into details - The Glass Prison opened Six Degrees, so it would make sense for The Shattered Fortress to end BC&SL.
i know this is an old thread, but i felt i needed to add to it, rather than start a new one
i understand what you mean about "this is the big ending" and all, and it is, especially when you listen to the suite as one piece. the problem with ending the album with TSF is it goes against the Black Clouds
AND Silver Linings concept. the first four tracks are dark and heavy, with the last 2 being lighter, more melodic, but still dark at times.
part of me wants to think that TSF also closes out the last series of albums with all the darkness and heaviness; going along with the Suite as well, and TBOT and TCOT begin a new, lighter, more proggy series of albums (or at least the next one). i think the next album will be more in line with TCOT, 8V, Blind Faith, SDOIT, etc. basically BC&SL is the transition from the darker side of DT to the lighter side (or at least less dark) side of DT. theyll probably still be heavy (TCOT has its moments) but im hoping for more prog! and theyll probably ease up on the epics too