To illustrate my point, I toyed around with the geosets in WMV. Pandaren have a few extra, and I wanted to show that. It can be seen on the pandaren starting gear, but here it is more obvious as the textures aren't made for it.
Aside from the cuffs at the wrists, the geosets are new. The shape of the pants at the knees, the cuffs at the shoulders, the rope belt. Sure, they are just geosets made for the gear, but it does sketch an idea of what their intentions might be in the future with gear. I really don't think they put that time into it just to give it to one set(literally only the Pandaren monk starting gear) and then never use it again.
I think it shows that they are planning to do something with the gear and the models of the gear, so I think it's fair to expect that we won't be sticking with flat-texture chest armor forever.