Codenamed "Kona," Qualcomm's Snapdragon 855 successor will allegedly come with LPDDR5 support. Qualcomm hinted at an integrated 5G modem earlier this year, but the latest internal development boards suggest there could be a SoC version without an integrated 5G modem. If it releases later this year, the upcoming flagship SoC is probably going to be manufactured using the 7 nm EUV lithography.
https://www.notebookcheck.net/Snapdragon-855-successor-may-get-LPDDR5-support-and-optional-integrated-5G-modem.416274.0.html