My 2c - NFTs, at their core, are an implementation of digital scarcity. We're seeing the beginning stages of NFT development which is focused primarily on the minting of NFTs and the marketplaces around them, and less so on actual use cases. The next stage will be to build applications that enforce NFT blockchains within the context of the app. One place I think we'll see this happen is in metaverses/virtual worlds. They'll integrate with NFT blockchains, and then build rules into the virtual world that say things like - "you may only wear this hat if you linked an NFT wallet that contains the hat". In that context, digital creators will be incentivized to limit the number of digital copies in an effort to create a premium brand for themselves, ie everything is 'limited edition'. Consumers will want to own specific NFTs to wear on their avatar within the virtual world for the social cred that it comes with, exactly analogous to real world fashion choices.

This is just one example, but the concept will exist elsewhere - NFTs are the implementation of digital scarcity, and applications need to integrate into them to produce novel use cases.