Looking forward to a future with Phonak devices that some day have LE Audio. I know some thing Phonak will drag their feet, and they might.
However, I think Sonnova is at serious risk of losing money if they don’t. A competitor that produces a broadcast device based on a defined technology standard that works as well as or better than the proprietary Roger solution (yes, this remains to be seen in practice) means I would go with the competitor. Whether that’s something like a school, conference room, TV streamer, etc, I’m not going with vendor lock-in over a common standard that will likely cost less.