They might, but they still haven't implemented it. And as I said if you have a TV with Airplay and an Apple device (iPhone or iPad) there's really no need for a standalone ATV4K anymore- they both do the same thing. Plus with Airplay you get real bitstreamed audio.It's taken Apple TV 4K 3 years, but 14.5 supports integer frame rates, so both 24 and 23.976 now Apple TV: tvOS 14.5 to support both 24.000fps and 23.976fps
Makes no difference to me as I sold my 32GB ATV4K for 2x what I paid for it. I have an iPad and combined with Airplay it works just fine.