Comment by klipklop

I would suspect that they continue to support those until they hit their agreed upon EOL. At some point they will ship new units that are essentially identical in use (running chrome), but are locked down under the hood (for school use) to be more like chromeOS and less like Android.

There is a good chance the average end user wont even notice the difference. It seems doable, but I guess the devil is in the details. If they can't pull it off, Apple is rumored to be launching a ~$599 macboook. Would not be really stretch to see them complete in this space again in the future.