OrleanKnight, thanks for explaining a little bit more about the system.
I don't think we will be employing it however, as Darvin has pointed it out it is quite a bit of cost for very little gain. If you do want custom models, you could always create your own after release, or re-skin the stock ones and your army would appear different. The other players wouldn't notice your model change but atleast your getting what you want. I understand the want to show off a custom thing to the online world, but it's really not feasible when we look at how much money and time it would cost to implement such a system.