Yeah most altcoins like ethereum will survive. Nothing can stop these coins. But there are some altcoins with zero daily transaction. These ones will die off very quickly and forgotten.
The value of ETH is largely supported by the ERC20 TOEKN. So I think we can give priority to investment ETH.
Of course it will survive and the reason is the trust of the people. As many people invest in crypto its life span will increase. I am sure that crypto will survive till the end of the earth.
All other currencies will finish like paper, fiat and low quality crypto and only top crypt will remain in the market. Bitcoin, ETH, litecoin and Altcoin are the biggest coins of the day. These will make permanent place if digital currency market.