The Sangean HDT-20 HD tuner is due out July 31, 2016. Universal Radio is one of their authorized retailers and has an overview page here...
List price is $279.99, Universal Radio customer price is $199.99. It looks like you can order NOW and be on a waiting list.
I *think* the WTFDA should have a Technical Editor and he/she could persuade Sangean to loan them a unit for an FM DX technical review, right here on the WTFDA Forums. Any volunteers up for it? Remember, you have to be up for long hours of continuous dx and perhaps little sleep at night, dealing with any type of dx thrown at you or lack there of. There I go again, dreaming.