We already had a "Basic mechanics" skill, that means that there possibly can be an "Advanced Mechanics". As i see it, its something that can work w/o player interfierience, but on lower speed. With player interfered, it'll gain a production speed boost, like +150%(or x1.5 in other terms). It didn't mean that strictly should be implemented in current worls, bay be in futher ones, but... Anyways, there here some stuff i want to see inside that concept: bull|horse-powered juice/oil press, (wood/metal)turning/sawing/chopping/pressing stations, also items that need those stations to be produced. Andvanced mettalurgy, for example... Like making an steel chainmail(instead of wrought chainmail). Making an advanced types of shields, like bronze shield(4 Bronze bars + 4 leather pieces) or wrought shield(4 wrought iron + 2 hardened leather + 2 boards) or heraldic steel shield(a picture+4 steel bars+4 hardened leather+4 wooden block+2 wooden boards). Also, biulding the Catapult|trebuchet needs that skill obtained. like that. The Thread will be adding and rewritted on, when any futher ideas will come into my mind.
P.S. I even could draw an 7-way blueprint(6 axis-oriented views + 1 isometrical) of any of those mechanisms, if you (Jorb & Loftar), wanted to....