What do you mean survive? It is crypto and it always will have the value! I think that you can sold any dead coin for few satoshi anytime. For example Bitconnect still traded.
Some value will be preserved but real usage will be ruined. Crypto coins are all based on similar technologies and all developers behind the specific project have some "fantastical" plans for the future which they are presenting to their fellow investors flawlessly. Truth is that current market is attracting the investors only because of the volatility that is circulating through the market and not because the real usage that can the certain coin achieve.
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Just because of that fluctuations most of the cryptos will fall to the bottom a no real usage will be possible after that for them. Only the top coins will survive in a long-term but even they are risky for holders.