Ofcourse they ll hodl. What is the meaning of selling at low? Eth will not die for sure. So they can wait till they are comfortable with the price 
Hodl until can earn profit, ethereum will regain its price for sure. Some hold their eth because of the price suffering downtrend. Many invest in ethereum hold can do for now and for the long term investment will earn huge profit.Ofcourse. Whenever gpu mining for eth finishes, price will start climbing faster and faster. Eth is still one of the most promising altcoin.