There are arrays of suitable satellites. I'm sure that if it turns out a mystery remains, then their owners can be quietly asked if they can help, and in an informal way they would. Countries with ocean surveillance radar constellations and missile warning imaging satellite, along with even some weather coverage from moderate and geostationary locations might be able to shed some light.
In the meantime, a fisherman with a bit of plastic is likely to be the first to shed light on the location of the wreckage.