Coinbase announced their intention to support the Ethereum ERC20 technical standard for their platform in the coming months. This paves the way for supporting ERC20 assets across Coinbase products in the future, though they aren't announcing support for any specific assets or features at this time.
https://blog.coinbase.com/adding-erc20-support-to-coinbase-fe9cba6782bEverythink can change, it reminds me of BTC hard fork and them said will not accept BCH, but when BCH will be moon, them said will be listed early 2018.