Just discovered this post. I also want to add my thoughts on the existing EIPs for NFTs, such as ERC721 and ERC1155. Their design logic draws from ERC20 and fungible tokens(FTs). However, through research and practice, we have found that NFTs have more practical value than FTs. NFTs have more use cases and potential. Therefore, 721 and 1155 appear somewhat outdated.
This standard is an extension of ERC-721. Its inspiration comes from the abstraction of real-world asset relationships. It separates the holding right and transfer right of non-fungible tokens (NFTs) and Soulbound Tokens (SBTs) and defines a new role, guard with expires . The flexibility of the guard setting enables the design of NFT anti-theft, NFT lending, NFT leasing, SBT, etc.
FINAL EIP-6147: Guard of NFT/SBT, an Extension of ERC-721
We can also achieve decentralized NFT trading without intermediaries.
EIP-6105: No Intermediary NFT Trading Protocol With Mandatory and More Diverse Royalty Schemes
By using modern tax theory, various royalty schemes are proposed to better fit the diversity of NFTs and industry development. Through research, most of the royalty schemes can be implemented without any improvements to EIP2981.
Better and More Diverse Royalty Schemes