The latest patent that surfaced online suggests that OPPO aims to take the modular phone concept one step further in the camera department. Thanks to this design, the user could even place the camera module a few feet away and use the handset as a remote, apart from being able to use the module for selfies and usual photos.
https://www.notebookcheck.net/OPPO-might-launch-a-phone-with-detachable-camera-module.508401.0.html