Altcoin will survive still have strong altcoin they are next to bitcoin like xlm , monero, ethereum, neo all this coins are ready to compete with bitcoin and will survive it
all possibilities can happen and no one can make sure what coins will be the best use all the possibilities to benefit all crypto currencies will experience development as time and technology progress
I think the ICOs seem to be talking too much about their team. I have tested a lot of ICOs, many of which have freelancers, suggesting they have never worked in a professional company. This makes the project very easy to fail