What is Sonos' plan for transitioning from Google Assistant to Gemini?

I also hope to finally receive an official response to this.

Apparently, Sonos hasn't and won't (for the time being) include Google Assistant support in newer or future products.

If Google Assistant is no longer available soon, there probably won't be an upgrade to Gemini. This means that older Sonos products will no longer be supported.

Important message to Sonos:
If I were the CEO of Sonos, I'd swallow my pride and finally listen to the customers.
1. Retrofit Google Assistant or Gemini support for all products
2. Chromecast integration

So you lost a legal battle against Google (perhaps rightfully so), but don't you want to treat your customers to something nice again without taking money out of their pockets for new, expensive speakers?
Maintain your ecosystem and software consistently so that customers don't ditch the company, because there are enough other manufacturers that offer "very close" quality.

At the latest when Gemini is not supported and my Sonos Arc or Sub breaks, I will have to look for a good alternative to be able to play YouTube Music properly without the Sonos app.

Let's be honest? You could have also worked well with Google. Your hardware would complement the Nest system (like IKEA). Google would benefit immensely from you, and you would benefit from Google's customers. After all, anyone who has individual Nest speakers might also want a home theater system.

I get why people assume that Sonos stopped supporting google due to the legal battles, but it seems more likely to me that Sonos looked at the cost of the license and dev support costs to support Google voice and chromecast, as well as the market for the feature, and decided that it wasn’t the way to go.  Maybe that will change, but I doubt Sonos made the decision based off pride, rather than what was good for Sonos.

That said, I do think Sonos needs to make an announcement regarding what will happen to speakers that do have GA onboard already.

Assuming Sonos knows what will happen, at this point…

I don't understand what all this secrecy is about instead of just speaking plainly, and I can already say that those who don't keep up with the times will be left behind.

I am suggesting that Google hasn’t told Sonos yet, so Sonos is unable to make this statement desired.