do you think ETH will go down to 400$
I think it's more than $ 400 and it could reach $ 1,000 if the crypto market recovers in December. At that time ETH will be the most potential Altcoins if we buy it now.
I would not expect such a big increase this year. ETH can gain and reach 400$. But 1000$ this year is rather unlikely, because the situation from the previous December does not necessarily have to be repeated.