My guess is, we'll just skip the "wifi required" phase and go straight to "lte/5g/ring connectivity built-in". It's already like this with cars.

I can easily image a future where it's not even advertised anymore whether your device has a cloud connection or not - you just find its behaviour has magically changed one day.

I also expect other manufacturers to follow Amazon's example and create their own "ring" networks. So your Samsung TV might connect to the neighbor's Galaxy phone which is logged into their wifi, etc...