Oh yes that would be nice. A bunch of PoE HomePod minis with WiFi 6 would work great in my house to replace my 802.11ac UniFi setup.
I'm really dreaming big now, but some sort of AirPort central base station with SFP+ for my FTTH connection and 4xPoE to power and feed a bunch of HomePods would be brilliant.
Not so sure on PoE (great for technically inclined folks, not the general public, and if you're really set on PoE you could use a reverse injector to take power off the ethernet and break power/data out at the device) but it would be smashing if HomePods had WiFi mesh support (802.11k/v/r) and Apple used them to challenge Google Next Wifi and Amazon's Eero offerings (because the UX on Nest Wifi and Eero is so good, but I'd rather give my money to Apple).
802.11s is the mesh technology you would want. The others are, I think, for roaming devices (literally mobile radios). A bunch of access points already have this, though most all implement mesh in their own, proprietary standard.
You're right, thanks for the correction. The standards I listed are on the mobile devices for seamless roaming between access points, 802.11s is the mesh standard proper [1]. OpenWRT supports 802.11s [2], so I assume this protocol is trivial to support in wifi silicon.
