Two separate posts by OnePlus employees have confirmed that the OnePlus Nord will come with six cameras in total, and a 90Hz AMOLED screen. The rear camera will consist of a 48MP Sony IMX586 sensor, an 8MP ultra-wide-angle lens, a 5MP depth sensor, and a macro lens. The phone will be unveiled on July 21 via an online-only event.
https://www.notebookcheck.net/OnePlus-confirms-that-the-OnePlus-Nord-will-come-with-a-48MP-Sony-IMX586-sensor-and-a-90Hz-screen.481665.0.html