Rumors like this usually pan out 90% of the time. With the competition offering hifi tiers I think it’s inevitable we’ll see Apple Music HiFi this year.
Of particular note in the article:
“Within the code for the first beta of the upcoming update, references to "lossless audio," "high-quality stereo streaming," and "HiFi" are found within the Apple Music app. Accompanying code within the beta suggests that HiFi streaming could be limited to only certain AirPods such as the
AirPods Pro,
AirPods Max, and newer.
Wording such as "Route Incompatible" and "Route Unknown Compatibility" suggests that much like how Spatial Audio is limited to only the AirPods Pro and AirPods Max, HiFi Apple Music streaming could be exclusive to certain generation AirPods and other compatible devices.”
Apple must have added some sort of new wireless protocol to its latest AirPods. It would admittedly be surprising for them to already support this on current-generation AirPods Pro since I think HiFi streaming is enough to justify a new purchase. It makes sense for AirPods Max to already have this feature since it’s an expensive purchase tailored to audiophiles that users would be expected to keep for 2-3+ years.