Even if a complete glamour catalog, although ideal, isn't currently feasible, having the option to save gear sets as "glamour sets" might be another potential solution (for now).
The player could either set each gear and glamour sets separately, or possibly have the option to link which gear set go with which glamour set. I currently have about 15 gear set slots. I would imagine "space" would not be as much of an issue, even if they chose to give the player more gear slots for glamours. The solution would be repurposing a feature that already exists in the game. Still work, obviously, but not as heavy on the character data (I think).