Agree. Ethereum's next big upgrade will create a massive boost in price within the crypto market. It's hoped this would take effect by 2020 as said by Vitalik himself. Once this happens, I believe that there will be a lot of FOMO sentiment across people in the mainstream world. One thing for sure is that Ethereum is becoming an independent cryptocurrency in a slow and steady pace. This is probably because it has delivered true development and innovation in the same way as Bitcoin. Being a battle-tested cryptocurrency over time, shows us that it has the potential of outpacing Bitcoin within the future. The main issue now is the lack of scalability for the Ethereum blockchain. This prevents people within the mainstream world to conduct their transactions as they would normally do back a few years ago. As a result, demand will decline greatly affecting the cryptocurrency's price within the short term.
Once ETH upgrades towards PoS consensus and Sharding, there should be nothing stopping it from reaching new ATHs in price. Knowing that Ethereum has been quite a valuable cryptocurrency, should give us that confidence that it'll rise again sooner or later. The world has its eyes open towards Ethereum's latest developments, as it's a cryptocurrency that holds a lot of promise of changing our world for the better. All that's left is for mainstream businesses and corporations to adopt the smart contract platform, in order to fulfil its true vision of a decentralized world.
Nonetheless, there's no doubt that Ethereum will rise again. But, investors who are desperate will try to sell all of their coins when they see ETH falling in price. Only wise hodlers of ETH will truly reap the rewards within the not-so-distant future. As for predicting its future price, I believe that ETH would be valued at over $2,500 per coin in just a few years from now. Just my opinion