This is not short-term a priority, but it might be interesting to consider URIs for the metadata to be content-addressable, rather than a standard URL.
I'm not sure what ERC721s utilise content-addressed URIs for metadata. But I was thinking of doing something like pointing it to an IPFS gateway and having the metadata be pinned with a schema.org object.
@okwme added an upgradabale metadata contract.
This is not short-term a priority, but it might be interesting to consider URIs for the metadata to be content-addressable, rather than a standard URL.
I'm not sure what ERC721s utilise content-addressed URIs for metadata. But I was thinking of doing something like pointing it to an IPFS gateway and having the metadata be pinned with a schema.org object.