What do you think is the next coin to be added to coinbase and why? I think its either Ripple or Monero. Ripple has great connects to banks, which coinbase likes and Monero is the most popular private coin out there.
From what I know, it will be Ripple. Ver even made some inside trades with XRP.
I think they will never add Monero. It is too anonymous coins for mainstream business like Coinbase.