It may not be too late for a private salvage operation to raise the flight data recorder and cockpit voice recorder. What is needed are a couple of amateur cave divers who can operate with heliox and decompressions stops.
A single professional oil rig guy would do it in a doddle.
However, I wouldn't be surprised if someone has beaten us to it.
Another possibility with respect to CASA is that PM & C might have decided to do some surgery and amputate parts of it . AVM. Skidmore might already be briefed and tasked with holding the fort while this is done.
...but how would I know? I'm just guessing what Sir Humphrey would do.