Judging by the progress they're making? I'd say about 3 interns who are doing it for free on their spare-time.

Entire full release games have been made from scratch in the time SE managed to re-design a battle system (in most games it's done in few months and then locked so other aspects can be designed on top of it).

Let's see what their art team has managed to do in this time...wait ONE dungeon, are you kidding me with this?!

I don't know whether to laugh or cry.

New piece of gear shouldn't by any means take more than 4 days MAXIMUM to produce by a one guy let alone an entire art team. Then why is it we still all look the same because player's can only choose between a potato sack or a coffee-pot-armor?