Just like the Noahic Covenant is more than the ark, the Covenant of Works is more than the 10 commandments. Think of the C of W’s as a car; The commandments were the engine and gas of the covenant of works. The fall was the proverbial pothole that rendered the axel inoperative, making the whole of it inoperative. God took the engine and gas and gave that portion to Moses, leaving the defunct chassis behind. The spirit of the C of W’s was in the law. God gave that to Israel. He did not republish the C of W’s as the C of W’s is much more than just the decalogue.
The Mosaic is a gracious covenant, to attempt to press into the decalogue an idea of republication is like trying to say an 1958 Edsel is the same as a 911 Carrera. Yea, they are both cars, but completely different in so many ways.