I do not believe that alternative coins will die in the near future. It seems to me that we need to go through a period of falling and we will get a good profit.
altcoins won't die in the nearest future - it is precisely. But in the future they will become much less. there is too much coins, and there is no advantage from them.
its too early if we say cryptocurrency die.bitcoin and other cryptocurrency still on early developtment and not completely yet for their roadmap.so dont worry with current price on market.