According to the verge, they claim Sonos is working on a set of new speakers and they look like they are designed to play audio in multiple directions including up for atmos.
The Optimo 2 looks like the flagship, a replacement for a Sonos Five, it's big and has drivers for audio in all directions. Then there is a smaller speaker, the Optimo 1 and Optimo 1 SL, these could be designed as smaller home theatre and portable music speakers but with height channels.
The new speakers appears have way more RAM and memory than previous models, perhaps indicating Sonos big plans for its new products
https://www.theverge.com/2022/8/24/23319989/sonos-optimo-speaker-features-design