No. Even if they find where it is, they have to figure out a way to a) get to it and b) bring it to the surface.
The only subs that can go down there are automated rovers, which are not designed for lifting objects. They don't have the ability to bring the sub to the surface, and I guess the best hope would be that they could free the sub if it was entangled in something.
But considering they haven't even found the sub yet, it would be at least 12 hours before they could devise a rescue plan if they even found it.