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 ? 
Now a days crypto currency market is pump so now eth price is six hundred Plus and in a short time it can be eight hundred plus so I can say it is possible to increase ETH price. Now There are too many company use Eth and too many company accept Ethereum payment possessor and day by day eth price is growing very faster.