Yes, i suggest holding Ether too since it is a coin that has potential to be great this year. It's much more decentralised than bitcoin and used by most ICOs to make their own coins. I would consider holding until it reaches a new all time high.
Ethereum is worth hodling because it is the best of all altcoins. We can rely at ethereum because it has good technology that serves good purposes in crypto community and at the crypto market. It's best to hold longer our ethereum because sooner it will rise high again and i predict it will be at year ends.