With GCD growing, I get the impression PVE is opening up room for strategic timing, versus action-rotation. WoW is a bit of a button-masher MMO compared to FFXIV, for instance. Perhaps now, bosses will have more frequent, less punishing windows of when to use your DPS/survival cooldowns, rather than stacking them.
Is there any indication GCD reduction (items/talents) might come with the changes?
Are we headed toward a more "thinking and timing" sort of combat, away from "execute the rotation?"