As the market observes more projects coded in other algorithms such as XRP, ETH is likely to take the backseat to the next big coin. This token will take a long time for the market to digest this, so I'm projecting 2019 to be the right time for that to happen. Of course, with crypto, anything can happen, so watch carefully.
Ripple investors have to wait a while before they emulate the initial Bitcoin investor's success, as long as it gets its appeal by users-and that big government, big banks or hackers do not crush Crypto across the board ..