The Concorde burns way too much fuel and has way too few seats to be a viable commercial aircraft by today's standards. Although the Concorde proved that supersonic passenger transport is POSSIBLE it did NOT prove that it was PROFITABLE or would remain profitable.
A supersonic transport will be designed and manufactured when airlines comit to purchasing them in numbers large enough to attract interest by aircraft manufacturers.
Besides does anyone realize how bonkers the Europeans are getting over global warming and carbon credits? That alone would likely double the price of a ticket to Europe on any similar aircraft.