I think only 70% of the encrypted coins will survive, because I think the cryptocurrency market is just like the bio-chain, the strong will survive, the weak will only be eliminated, and the cryptocurrency world will have new coins every day. So many inferior coins will definitely be eliminated.
Maybe even less. Now, the number of the tokens has almost reached 1900. It seems to me, most of them are unknown to the majority of the people. These alts can disappear as they will not bear the market pressure.