There is going to be a huge push for invite-only creator-centric platforms like LinusTechTips' Float Plane. YouTube should have developed something like this instead of YouTube Red ages ago.
Youtube made a tip jar where people (from a select list of countries) could tip a creator whatever they liked but they scrapped it before ever making the feature international.
They've released early-access subscription-based material before through the defunct Vessel platform (which exited successfully via buy-out). Now they're building that platform themselves for their audience.
Whether they can expand it successfully to other creators is another question, but I see no reason why they wouldn't...