Even if the production stops, the device will still be supported for some time. It won't happen overnight. They are not going to prevent you from accessing Ledger Live or their services with it. Even the old HW.1 still works (kind of) as mocacinno showed in this post.
Please let's be realistic, they are doing the same thing like smartphones and they even want to evolve their hardware wallet into phone 
They don't have the work power to handle updates for all three active devices (they already have 3 or 4 defunct devices) unless they move their factory like Apple in China or hire other slave workers.
This is just my speculation, and we can always return to this post in future and see if I was wrong with my prediction
