What hope is there that FDR data will be recovered, or the various bits and pieces that seem to be missing at the moment will be found and usable?
Granted, this was a high kinetic energy crash, but I was under the impression that CVR's and FDR's are very robust bits of kit. Yes, saw the deformation of the CVR body. As most crashes in recent history have had FDR's survive some serious destruction of an airframe, it is disappointing to learn that now and again the black box itself doesn't survive in usable form.
IIRC, the recent freighter crash in Bagram fell afoul of a form of that, in terms of the area where the CVR/FDR are located being where the internal damage leading to the crash began, with the signal being lost shortly after rotation. The boxes themselves seemed to have survived that horrific crash.