Some will survive and when they do, they'll be bigger then ever. All the other coins will be traded in the LTC or doge markets only or be forgotten after a week.
You need a strong dedicated coin dev team to survive.
Bingo. A strong dev team and community. Some alt coins are slowly dying and others are swimming upstream. But look at how popular dogecoin is and yet if you are holding them, they are nearly half the price they were a month ago. Unfortunately, so many dogecoins are mined each day, it's hard to get that much new investment daily to at least hold it's value.
Look for alt coins swimming against the stream, and then look at their dev and community.