Coins that probably will die soon are the ones that have no value at all, especially for those coins that exist for a long time but didn't improve it's price in the market. That is why the only coins that will probably exist in the future is bitcoin and the top 100 altcoins in the market because they are the only coins that has a development and better price.
old coins or new coins if there is no real use then they will die, talk about the fact that many altcoins lose value and may die because they don't have many users, don't have good price growth. but for me to register the top 100 coins is very risky, maybe we can reconsider for the top 10 coins in the coinmarketcap market.