I was thinking, Fallout 4 has the potential for the above in spades. Perhaps it will need G.E.C.K / FO4SE.
I loved these kinds of modes in Minecraft, and really cant stand playing that game with out them. I'm hoping you mod wizards feel the same.
The skill needed here is beyond my ability so I appeal to the powers that be. It blows me away the mods that where made for FO3 / Skyrim / Oblivion / Morrowind. I get excited thinking what will be wrought in FO4.
I was picturing machines, factories, nuclear reactors, waist water plants, desalination, big pharma factories, maybe even industrial farming. and a F** cement factory lol. *cough*. Oh and better power management ( wires an the like )
Anyway, here's hoping it would be popular enough to do, and someone champions the cause.