Looks like some more information is coming out on the new Fusion Camera.
There are two lenses, one on the front and one on the rear.It is bigger than the current Hero5 Black, and it's also fully square, and not oblong like the teaser images implied. The two lenses are set into the body without the typical GoPro square/flat protection cap. This is so that the camera can get an unobstructed view through 180-degrees, and not just straight ahead of it.
Despite having two "equal" sides, one of them has the classic small LCD display for showing what mode the camera is in. There are of course the usual power and highlight buttons too.
Sidd
"Life moves pretty fast. If you don't stop and look around once in a while, you could miss it." ..... Ferris Bueller