Yeah, Actually I was thinking, unless square uses some kind of
Random number generation theory into the combat system mechanics, so the period of the optimal rotation is so big that until we have to repeat the rotation we'll feel not to have a rotation, we WILL discover the rotations for each fight and apply them, like we did in 1.0 and in every other MMO.
But don't worry, I'm pretty sure they will keep in mind the individual CD's and the GDC and how they work together along with the WS workings to create a fun, tactic and engaging combat system.