Microsoft was rumoured to have been working on a successor of the Lumia 1020. Dubbed McLaren, it was supposed to have a giant camera and 3D touch gestures. The project was reportedly scrapped but a listing for a prototype appeared on Chinese auction site Taobao shows that the device (or at least something similar to it) was almost completed.
Its internal name is RM-1052 and as you can see from the photo it has a 1020-like camera hump, similar style, and made mostly out of aluminum. There is a plastic part at the bottom most likely intended to improve wireless reception. Software shot shows it even has a better 1080p display. Too bad we probably won’t see this device out of the Microsoft stable any time soon.