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
Unlikely to happen. Why would you dump ETH for EOS though? And I don't think that BTC will go below $7K. That's the bottom that I'm going to see so I expecting it to go up once we touch it, worst case situation. However, the bottom for me is $7200, and I have no doubt that it will go to $7K.
But the likely scenario of ETH fanboys dumping it in favor of EOS? Nah, EOS will not be the ETH killer that most of you guys wanted to see it. ETH has a lot of investors and I doubt that they will leave in favor of EOS.