Two events may happen, one would be fully develop bitcoin system and the other would be the existence of more advance crypto technology. Bitcoins future would depend on people support and demand, once bitcoin have gain popularity and demand, it would possibly cintinue the track of good future. Currently, we are seeing success because its becoming more accepted and recognized by increasing number of people. On the other hand, bitcoin once not developed will fail and may crash. In the coming years, we could expect new technologies will be developed and once bitcoin does not compete with the demand, it will surely lose its track.