about 3 months, there has been a lot of fluctuation causing the price of ETH to drop dramatically. At this time Should hold ETH ? Can ETH price increase again 1k3$ again in late 2018 ? 
Although it is a very low probability, I think it can rise again before the ending of 2018. In my opinion, it is hard to understand the characteristics of the market now, so, waiting will show us that how the prices will go.