Similar idea is an internal proposition since some time. But it
probably won't happen before scripted GUI rework, so "soon" or later than "soon". If the interface rework would be taking too long (like 2 years) it
may be done earlier though. But anyway, until something is really done, nothing is certain, so don't get overexcited.
What is planned is a special "accessory" slot for one extra item giving some passive bonus of special kind. Basically any part of gear that isn't armor or helmet. Could be a backpack giving bonus to CW, or glasses giving bonus to perception, rubber boots allowing you walk on green goo etc. It wouldn't represent any specific part of body, just a kind of extra gear that you don't have to hold in hands all the time and that isn't armor or helmet. At any time you could wear only one (if you have such item). You would have to make a dramatic choice

what kind of accessory is best worn in specific circumstances.
Here is a little mock-up of interface window with additional accessory slot:

One type of those accessories would be items giving bonus to CW. Purses, courier bags, military backpacks etc.