> A supersonic jet that is allowed to fly supersonic over land could unlock more profitable routes
It also won't happen. Especially in the land of NIMBY that is the US. Not only could Concorde not go supersonic over the mainland, it had to slow down to subsonic when crossing FLA between the Atlantic and the Gulf of Mexico.
That was because the boom was so loud with the Concorde. Fighter jet booms regularly cause property damage. Apparently new designs allow for much quieter supersonic booms which would make it easier to allow those. The US isn't just a country of NIMBY, also of capitalism and lobbying. If enough congressmen get free tickets for intra-US flights, the ban will quickly be lifted ;)
It also won't happen. Especially in the land of NIMBY that is the US. Not only could Concorde not go supersonic over the mainland, it had to slow down to subsonic when crossing FLA between the Atlantic and the Gulf of Mexico.