" what makes this new supersonic aircraft interesting - it is claimed to be non-afterburning"
Not really.
Concorde's mfg were well aware they were the only civil aircraft with reheat and had they got to a 17th Concorde one of the upgrades was deleting it, due to design improvements they'd identified from flight data.
People also forget Concorde did not fly in 'burner above about M1.2, IE it was just used to punch through the sound barrier. It was "super cruise" before most people ever used the term..