With the recent announcement of being able to have privacy type tokens on the Monero blockchain. Is there a proposal on ethereum for something similar? The usecase of having a private ERC20 would be useful. What privacy enhancing features have been proposed?
Currently no. You cannot do privacy tokens on ETH. But maybe in the the future with zk-snarks. More info at https://blockgeeks.com/guides/what-is-zksnarks/