I’ve created EIP 1185 which describes an ENS resolver profile for ENS. This allows DNS resolvers to obtain information about ENS, and is used in EthDNS to resolve DNS records in Ethereum transparently. Comments welcome.
Link to the EIP: https://github.com/ethereum/EIPs/edit/master/EIPS/eip-137.md
Explanation of EthDNS: https://medium.com/@jgm.orinoco/ethdns-an-ethereum-backend-for-the-domain-name-system-d52dabd904b3