Of course the proposed Ace wardrobe manager would have to have a "naked" profile, the ability to take off all equiped items with durability (leaving on rings, necklace, cloak, trinkets, etc). There is a non-Ace AddOn for exactly that purpose called Strip. However, it's not Ace! :P
I would love to see an AddOn developed specifically to take advantage of Ace to replace Wardrobe and EquipManager, rather than just reworked version. Besides, both Wardrobe and EquipManager have quirks and bugs and one of the authors is extremely...tempermental. :wink:
I love the "GUI" function of Sell-O-Matic and Zoot. What I'm picturing is...rather than have specific GUIs for equipment layouts (ala EquipManager and Wardrobe) which take up memory needlessly...just use the default character frame bags, shift-clicking to add/remove items to a set. I've no doubt this would be much smaller and much more efficient than either of the two existing AddOns.
Automatic equiping of sets could be defined, ala Wardrobe and EquipManager: druid forms, warrior stances, rogue stealth, hunter aspects, priest Shadowform, Plaguelands, mounted, swimming, etc.
Commands would be pretty easy to use. Defining a set (pre-named sets for those auto-equiped above) and modifying the equipment in the set. Something along the lines of...
/aceequip create STA <- creates a set named STA
/aceequip modify STA <- opens the character window and bag windows to shift-click inventory (equiped or bagged) to add or delete from the set. Upon mousing over the item, the tooltip would have something similar to "Zoot exception" or "Sell-O-Matic recognized"...perhaps the name of the set(s) that item belongs to.