I cannot give you a particular kind of altcoin that will die. It is hard to say that. Altcoins are individual projects and even if there are many altcoins that can be categorized as one, they are still single projects. Everything will boil down to how the particular project offers a brilliant innovation or how it is pursuing significant partnerships or how it is being promoted. A project in a beaten path could still earn success if the perfect ingredients and timing are there.