Ripple and ethereum will both play an equal though different part in our world.
There are other cryptos that also have a place for sure but these two cover the most signifigant aspects of whats to come.
Ripple is going to be synonymous with banking, and ethereum is going to be the centre of most everything in time.
We are witnessing the birth of truly world changing entities, and i cant wait to see what the future holds.
In terms of other uses, such as a truly anonymous payment system zcash and dash or others will probably be a good guess, though that will become more and more difficult over time.
Bitcoin itself isnt going anywhere, even it could become world reserve currency of sorts... i do definitely see a $10,000 bitcoin in the not to distant future.