Since last year, The first bigbang of bitcoin history so many people was engaged in bitcoin and until right now. I dont think so bitcoin will ends because if there was people who use or trade and invest bitcoin is still alive.Only bitcoin user can say bitcoin ends..
There is only one way of bitcoin to end and that is that people stop using bitcoin or they start thinking its just a bubble and not a currency. Bad news and low price can make people quit bitcoins but even if few quit at low price, many are ready to buy at dip, so bitcoin will never end.