Well regardless its good to keep this topic running. Given the delays in the 2.1 release it could be very possible that the devs end up cutting down the content released for 2.2 to get another content patch out fast enough to keep the blood pumping. Wouldn't want Vanity slots to be one of the things pushed back to 2.3 or later should that happen. Keep the developers reminded this a highly demanded QoL addition.

Naysayers keep in mind the development time for a system like Vanity slots wouldn't even be worth 25% the development time of a 4 man dungeon, so don't worry about some major piece of content being phased out in favor of the Vanity system. And by all accounts the system was already partially complete in beta phase, so it should take even less resources than that.