The next generation Intel mini PCs will purportedly drop Kaby Lake-G and Radeon graphics in favor of 9th gen Coffee Lake-H, Tiger Lake-U, and dedicated Nvidia Turing graphics with a custom vapor chamber cooling solution. The non-gaming Frost Canyon and Quartz Canyon NUCs are expected to launch in between the gaming NUCs.
https://www.notebookcheck.net/Intel-NUC-gaming-Ghost-Canyon-and-Phantom-Canyon-on-schedule-for-2020-2021-launch-according-to-new-leak.429964.0.html