it is very difficult to say what kind of altcoin will die. we cannot predict with certainty. but if you want to know what type of altcoin has a good chance in the future, i'll let you know. look at CMC, choose altcoin which is ranked 1 to 5. i think that's pretty good in the future.

so, don't look for altcoin that will die. better use your time to research altcoin which is very profitable for you.