They might as well.
ETH might go to 380 USD if BTC goes below 7K
That is my valuation: Opinion
If things got really bad ETH could be worth >300 USD
I dont think so. ETH is a strong crypto, many token build in it. EOS is too. May be you see the number of ETH that EOS hold after ICO. But EOS is doing mainnet, and we not sure mainnet is successful or not. Addition, i dont believe EOS can effect to the ETH price