Now that you guys mention it, yeah, most of Neal's instrumental pieces tend to be his Overtures, but I think there was an effort on The Whirlwind to include an instrumental movement ("Pieces Of Heaven"), and they even did it again in "Kaleidoscope" (Part VI. Lemon Looking Glass), but I do agree - it would be neat to see them do a full-fledged, stand-alone instrumental track.
To be honest, I don't mind whatever format the next album takes, but I like Scotty's take on revisiting the singular-epic format of SMPT:e (and in turn, similar albums from Neal like Momentum, NMB's The Grand Experiment, and SB's V). Write one huge epic in the 25-35 minute range, then maybe 3-5 shorter songs between 5-15 minutes long.
Whatever they come up with, I just want the music to be good and inspired and feel fresh, but still retain that classic prog sound that they're known for, and more vocals from Roine, Pete and even Mike. I feel like Kaleidoscope was a step or two back in the shared vocal department compared to BAF and TW, so hopefully there will be more vocal interplay.
-Marc.