This new NUC goes into beast mode with an 8-liter enclosure that can fit full-size GPUs plus a PSU. It also supports 45 W Intel Tiger Lake-H CPUs including the HK overclockable models, but apparently only supports air coolers, so it might get some TGP restrictions. Nevertheless, it also comes with a NUC 11 Extreme Compute Unit that includes features such as PCIe 4.0, Optane Memory, 2x Thunderbolt 4.0 connectors and even a 10 Gb NIC.
https://www.notebookcheck.net/Intel-previews-NUC-11-Extreme-Beast-Canyon-mini-PCs-with-support-for-full-length-GPUs.541973.0.html