https://arstechnica.com/gadgets/2019/10/nest-wi-fi-announced-at-made-by-google-2019-today/

Google debuted their Nest Wi-Fi—replacement for the original Google Wi-Fi—today at Made by Google 2019. Details given were sparse, but the device appears to effectively be the original Google Wi-Fi hardware in an updated chassis—which Google hopes you'll find attractive enough not to hide away in a cabinet—with the addition of an onboard smart speaker. Google did claim that Nest Wi-Fi delivers "up to two times the speed" and "25% more coverage" but with no technical detail, it's difficult to expect much concrete out of that.

There was no mention of Wi-Fi 6 support or anything else notable on the actual Wi-Fi front, but the addition of Google Assistant and a smart speaker in both the Nest Wi-Fi Router and Nest-Wi-Fi Point (satellite nodes) means fewer devices necessary for those who want to audibly command Wi-Fi setups, eg "Hey Google, pause the Wi-Fi." Frustrated parents can also give commands like “Hey Google, pause the Wi-Fi for $childname” without impacting the rest of the network.