ETH has an uncertain future because of scaling issues. It's just not practical at this stage. Apparently most investors in it have no idea about the technical side behind it as discussed in this article:

https://www.forbes.com/sites/jeffkauflin/2018/07/25/why-major-cryptocurrency-investors-are-betting-heavily-against-ethereum/

ETH seems to be runner up in the race as bitcoin storms ahead. If that's because of it's potential, then it will have to do something concrete soon before all the speculative money dries up. Speculative money tries to frontrun reality, but sometimes it gets too far ahead of itself (as we've seen with many other coins). That can cause the coin to trip and fall.