I bought a 2014 Honda Accord a few months ago. It has a camera in the trunk lid, that gives an image of what is in back of the car on the center panel display when the transmission is in reverse. When you turn on the right turn signal a camera in the right hand mirror housing displays an image of the right side of the car and the adjacent space. There is no such camera on the left side. I assume this is because they don't want drivers moving left to look to their right towards the center panel display.
I believe that many current model cars have similar cameras and displays.
A 360 display would be a step further in the evolution of these displays. But, I am not sure they are totally necessary. Vision forward and within the front 180 degrees is really not much of a problem. The A pillars are small and it is easy to look around them with very small head movements. Only the areas to the side and back and below the trunk lid are obscured. The back up and right turn cameras cover those areas, the only real blind spot is to the left and back.