I found on Nissan Newsroom the short movie with the supercar concept. The pity is that the text is only in Japanese however as most of people in such situation i used google translator. So the movie presents the Nissan 2020 vision for car which should enter the Gran Turismo.
To me it looks like making a hypercar from current GT-R. Although GT-R is astonishing the car for 2020 should be unique in case of design.