Yep, sounds as one of the many rumours that are spread. The same as the one I heard 2 weeks ago, just before the announcement of the 2 A300 going away, that DHL bought another 16 B757's from BA.
It is on the other hand told by people that went recently to AUH for maintenance that a total of 6 A300 are planned to go away depending on the economical situation. 4 Left already so if this info is correct 2 more might go.
Also the heavy maintenance will be transferred from AUH to Dresden.
Regards