Noctua's latest roadmap, released in late July 2020, shows many of their upcoming products have been pushed out into 2021. These include black versions of popular heatsinks, black covers for existing silver heatsinks, white fans, and their sizeable passive CPU heatsink.
https://www.notebookcheck.net/Noctua-s-latest-roadmap-shows-delays-for-several-new-products-including-black-heatsinks-and-white-fans.483886.0.html