A significant drop seems unlikely unless something drives costs to crater.
The reason prices have done what they have done for the last several decades is, in part, because the market has not really been “free”.
It actually creates a split. Prices for the lower level stuff will go down, but the prices for the higher level stuff (major surgery, time spent in an MRI machine) which are being subsidized by higher prices for the lower level stuff, will go up.
The only way to drive down costs is to ... control costs. Thats hard to do for the actual services themselves so you look at things like administrative overhead, malpractice insurance and limiting what services are provided (unnecessary tests, for instance)