Earlier quoted context omitted.
If Apple kills existing Airtags any time soon they effectively kill the product line. So they won’t.
Its really easy for them, and this also in line how they would operate: Add a new Airtag v2 protocol to the next iPhone and sell new Airtags only using that protocol. Why should you buy them? They could have different improvements you would like. Start deprecating Airtag v1 in 3-4 years - and only sell new ones. There are now 3-4 iPhone generations that can handle the new version. The next iPhone in 6-7 years doesn't…
I suppose you could contradict me by providing a list of the products Apple has deprecated this way.
Can you?