It seems that new Intel Core M processors are on the horizon based on its Alder Lake architecture. The upcoming Alder Lake-M processors have a 9 W TDP but also 10 cores to play with. Undoubtedly, Intel's 'ultra mobile' processors will consume more than 9 W under load with that many cores.
https://www.notebookcheck.net/Intel-Alder-Lake-M-processor-shows-up-in-benchmark-database-with-10-cores-and-a-68-W-PL4-TDP.580165.0.html