Concorde itself is a non-starter. The companies which know how to make the parts for it don't want to make the parts, and the agencies which would have to give regulatory approval for it to fly won't give the approval (especially without the parts).
If someone cracks the economic difficulties of supersonic passenger flight, maybe some other aircraft could do it. But Concorde is going to remain a museum piece.
If someone cracks the economic difficulties of supersonic passenger flight, maybe some other aircraft could do it. But Concorde is going to remain a museum piece.