The accessories company Spigen has reportedly updated its OnePlus-compatible range with listings for the three devices thought to comprise the upcoming flagship series. According to this leak, they are the 9, 9 Pro - and 9E, despite recent tips that purport to change this name to 9R. However, it now seems there is more to this story.
https://www.notebookcheck.net/OnePlus-9-series-a-case-maker-allegedly-confirms-product-names-for-all-three-phones-ahead-of-their-launch.526564.0.html