I don't think bitcoin will die. If you observe it everyday, it is gaining more investors and user base. More country is getting open in accepting bitcoin transactions, and more project and development is observed. Even if bitcoin power decrease due to a more popular altcoin in the future, it will stay alive because of the baser user it established.
Same what i was thinking bitcoin will never die, until more people using bitcoin this will exist and continuous adoption by more people it will get stronger and increase the potential that bitcoin life will go long lasting.