Perhaps someday something will wash up on shore. If someone has this plane, I would think we would have some hard information about it by now. This plane is a complex beast and requires maintenance. If they have some intended purpose for it, they will use it sooner rather than later. It’s most likely crashed somewhere. How perplexing that a aircraft with state of the art communications could just vanish without a trace.
It's really not perplexing. The state of the art communication systems are designed to permit communication if the crew wants to communicate. In the case of flight-370, whoever was flying the 777 did not wish to avail themselves of the plane's communication systems.