[usrusr]

It would certainly not be good business for a consumerism-centered brand like Samsung and it would even be suicidal for Apple to suddenly start charging for updates. But for an Android brand built around sustainability, like e.g. Fairphone, it could be a considerable credibility gain if they replaced a promise of future gifts with a proposal for future business.

No matter how updates happen, if they do the effort will be paid for with money coming from the customer, one way or the other. Any payment scheme other than pay on delivery requires trust and that specific form of trust has evaporated a long time ago.