I think that 95% of crypto coins and tokens won't survive and the reason is that a crypto coin in order to survive and get value it has to be accepted as a way of payment for purchase goods or services.
Very few coins will manage to do it at the end of the day and of course these coins will get enormous value.
The only thing you have to do is to find out which coins will enter the market of real currencies.
I don't think 95% of the total coins in the crypto market today will fail in the future because this cryptocurrency is the future of our money, trade and economy.
investing on cryptocurrencies the most profitable investments in our generation and we are very lucky that we are earning money while the world isn't fully adapting this blockchain technology yet.
I think only around 5% that will fail in the next few years because crypto technology today are tamper and hacking proof and that's the reason why there are too many new altocins are newly listed on crypto market today.