The short answer is no. Whilst models such as the AF model at Dulles Airport may still be in one piece, one of the reasons it was taken out of service is because Airbus said they were not going to provide support and maintenance for the fleet any more. The cost alone to bring them back in to service is astronomical.
A search of the forums and the web in general will provide more info as to why we're highly unlikely to see Concorde in the skies again.