Thanks for posting the links. They say they are "preparing to resume the shipment of samples in 2022. ... Details will be announced in January of 2022."
To me, samples means small quantities.
Then, later in the article: "As audioXpress also learned, all the above mentioned AKM chips, including the AK4462, AK4498, AK4499 and AK4336 references are no longer in production. Asahi Kasei Microdevices intends to confirm a new generation of products starting in January 2022."
That sounds like redesign work for audio manufacturers who have been using the previous generation of chips.