A new OnePlus phone will have cameras that are found in a single, circular module on the back of the phone. At least, this is what new renders from OnLeaks/PriceBaba indicate. These leakers speculate that the device in question will be the 7T, and, thus, will launch in mere months.
https://www.notebookcheck.net/OnePlus-now-rumored-to-join-the-round-camera-phone-brigade-soon.431860.0.html