Not sure if this rises to the level of "pillar," but support for different media types besides images - audio files, video files, audio streams, video streams, dynamic gaming/metaverse assets (whatever that entails). Both on the collector/user side and the creator side. For example, creators could have a single dashboard that would allow them to choose which type of media for which they are creating an NFT - protocols and smart contracts would be abstracted away by the dashboard app. Collectors/consumers would have "media type" filters on their marketplace dashboards.