I will not definitely agree that the Bitcoin will end this simple. How would people think so easily that the Bitcoin will end in such a way that it is just on its downfall? It is just natural and just like now, it is going back to its normal price. And moreover, I don't think that there will be any other coin that can compete to Bitcoin popularity.
I think bitcoin will never end, if cryptocurrency not end then bitcoin will stay remain forever. I mean bitcoin is the most popular cryptocurrency and also many people invested in bitcoin too, we even can see many real crypto exchange in real life, the newest one is on Japan. I think bitcoin will survive for a long time.