Hold it. It will surely follows bitcoin price and will be second to bitcoin in terms of marketcap.
Yes I agree to him , you better hold it till the value of ETH goes up. Im sure it will move up since the value of BTC in now as it highest point. There's nothing to loose if you take time to wait for the right to sell your ETH. Ethereum is the most trusted altcoin so nothing to worry that it will gone in the digital currency.