Honestly, I think that we're already moving that direction-- Patreon is comparatively recent, but more and more people are finding that it's actually a viable "microtransaction/subscription" model for online content. The idea of paying a subscription model for some of the things on Patreon would have seemed silly a couple years ago, but I think we're starting to hit the ads-to-content noise/ratio level where people are actually seeing what the alternative looks like.