People should think about and transfer their seed words to new device in time, or they will lend up like with ledger blue collectible.
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. I don't think that ledger will use better secure element, and screen will probably be same like for model nano x.
Check my reply to you regarding this in one of the other threads in this sub.