Hey comoped,
We appreciate your interest however, we don't have any news to share when the calendar will be available as wallpaper on any Nest display devices. We're always looking for way to improve and we'll take it as feedback.
I also suggest that you send feedback using your devices by saying, "Hey Google, send feedback," or by following the steps on this link. Let me know if I can assist with anything else, otherwise I’ll be locking this thread after 24 hours.
Best,
Alex
