Not sure what you're saying, bc Coinbase already said they will give out Bitcoin Cash on January 1, 2018 to accounts of record (who held bitcoin in August). This means they will need to provide the basics, such as withdrawals/sending and maybe deposits as well. But they didn't say if they'd be opening up trading pairs of Bitcoin Cash. So is this what you're saying? Trading pairs will be coming in addition to wallet access? Bc that would be news if it's true.