I do not think ethereum will be the future. I think bitcoin wil keep it's place for a long long time. Ethereum could be in the top ten of the best, but it won't be the real deal in the future.
And what makes you think so?
Have you seen how many advantages ETH has over BTC? I see that a few messages earlier it has been described, but still it has much more growth potential than BTC. And there might be 90% projects running their ICOs on ETH blockchain which makes it much more popular.
And I'm not saying about the guys from Raiden and Universa, who work on speed improvement that will make Ethereum way more faster.
So, how can that be that BTC which hit $7500 is better for long-term investment than ETH which is in the beginning of its growth with ~$310?