Despite featuring the Alder Lake CPUs, the NUC 12 Enthusiast models do not support DDR5 RAM and are limited to DDR4-3200. Nevertheless, the upcoming NUCs come with powerful specs like Intel's own DG2 dGPUs with 8 / 12 / 16 GB GDDR6 VRAM, two Thunderbolt 4 connectors, Wi-Fi 6E module, SDXC and UHS-II SD card reader, plus a redesigned chassis.
https://www.notebookcheck.net/Leaked-slide-shows-next-gen-Intel-NUC-12-Enthusiast-mini-PC-specs-with-Alder-Lake-CPUs-and-DG2-dGPUs.553613.0.html