This looks like a viable competitor to the recently announced HA Voice Preview hardware. Looks like it’s sold out at this point but there will be more coming. More microphones, presence detection and a builtin amplifier to run fairly substantial speakers.
https://futureproofhomes.net/?utm_source=youtube&utm_medium=product_shelf
Personally I think the mm wave sensor they chose is kinda junky. But that doesn’t bother me because nobody is forcing me to add it on.