Most likely existing ones will be silently patched out as well. They did the same with the noise cancelling feature on their AirPods where it suddenly got worse

Most likely existing ones will be silently patched out as well. They did the same with the noise cancelling feature on their AirPods where it suddenly got worse after one silent update due to a patent litigation. It's one of the reason why I'm not buying Apple products, I don't want the manufacturer silently nerfing my purchased property without my consent and me having no control over it. With other manufactures updates are usually triggered manually, not "automagically".