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 Will it die,,, will it stagnate,,, it is all no longer valid to ask as Bitcoin is too big to die.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.