I'd love if they made it like ffxi were u could swap your gearsets in fights. It was a great part of the gameplay there.
Wouldnt make that much sense for other jobs than tanks, because secondarys dont make that much difference as they did in ffxi (like haste or mab), but still, would be cool
Always loves to swap from tp/refresh gear, to ws/nuke gear. Or having a pld set for hp down > hp up, to get a shitload of enmity with cure 3/4 spaming.