BTC will always be the one. Its price will slowly grow and dominate but it will become more an ivenstition than currency. ETH has swifter and cheaper transactions and it is prepared to be used massively by the public. It will mos definitely grow soon.
Least but not last, take a look at Steem. Since Steemit gains thousands of new users per day, the price of Steem woul hit the sky within next months.