From today's German paper ....
There's a report in today's newspaper from the German Press Agency (DPA) that some sort of installation error may have occurred in the software on the accident aircraft to cause the crash. This has not been confirmed by Airbus.
Then there's the usual speculation about how this might cause people to lose confidence in the quality control standards of Airbus. Anyway, the report points away from some sort of crew error that might have caused the crash. It also reads that there's no basic problem with the powerplant design.