I'm quite surprised about that - not to sound gruesome, but I would think that after nearly 2 years, the local sea life would have eaten most of the organic material they could get at. It seems to have happened at the Titanic wreck site, where only the shoes were left, but in positions indicating they were still being worn when deposited.
Anyway, I am well chuffed to hear they have finally found the wreckage! Even if they do not find the recorders, or if the recorders don't work, the wreckage itself should tell a lot.