It's tough wanting to hear La Via Strangiato, Xanadu, 2112, or Natural Science without allotting half the set to just a few songs. Temples/Overture would be fine for the 2112 appearance.
I'm wondering how they'll arrange the Clockwork Angels songs. Whether it will be interspersed through the set or if they'll have more of a grouped "story" feel.
Either way, being my first Rush concert, they will not disappoint.