https://wccftech.com/intel-nuc-10-appears-with-10th-gen-comet-lake-u-cpus/

The Intel NUC 10 has started appearing at online retailers, and seemingly this is the "Frost Canyon" NUC that has been rumored as the next NUC release.

Not all the details pertaining to the newest NUC is available at this time, but it does look like this NUC will be in a similar (or the same) 4 x 4 enclosure. From a tip per the leaker @momomo_US, the upcoming Frost Canyon NUCs will be powered by Intel Comet Lake-U CPUs.