Qualcomm launched the Snapdragon 855+ last year as a better-performing refresh of the Snapdragon 855. There's unlikely to be a repeat with the Snapdragon 865, however, as an OEM exec has confirmed that Qualcomm will not release a Snapdragon 865+.
https://www.notebookcheck.net/Wan-Zhiqiang-Qualcomm-is-unlikely-to-release-a-Snapdragon-865.462289.0.html