The image below is from L'Auto-Journal and it is consistent with information from other sources. It seems the design of the 408 is finally frozen after some last minute changes by Peugeot's new design boss. And from the look of things and his latest designs at Citroen it seems that Peugeot now needs less help than before.
Inside the new car should look really nice judging be recent Peugeot interiors. The French brand has managed to apply some Audi magic in making interiors look really nice in the photograph and first impression. The fact that real quality is or not top standard does not seem to bother Audi customers so Peugeot is not worried also.