I think it will not die, but maybe it will drop we all witness a massive drop of the bitcoin price, dropping is normal but dying or become zero in value is imposible. We all witness how bitcoin reach its ATH this year. So dying is really far from reality maybe it will be back to its price in 2018 but it will never fall into zero value.
All we need to do is go back to the previous years where Bitcoin did ATH and then look at the following year or two and see the same questions people are asking now. Will it die,,, will it stagnate,,, it is all no longer valid to ask as Bitcoin is too big to die. Will it turn into something else? Will it stabilize? Maybe.
That is because there are tons of new people each time. Remember bitcoin is nowhere near the fiat levels yet, people use dollars OUTSIDE OF USA, more than they use bitcoin, think about the difference, I am not talking about how much dollar is used because that would be normal, it is a national currency of a nation that is probably the biggest economy or maybe second now, but we are talking about it being used more outside of its nation than how many people use bitcoin.
In that case that means there are newer people every single day, when there is a huge rush and the price goes up like crazy, some people make a good amount of money without any knowledge at all, why would they, they go "lol doge uwu" and make a thousand dollars in a day, so they never learn anything and when things start to go down, they go crazy over what may happen, and we get these topics.