Bitcoin will not die it might have weaken from this few months but it still have the ability to rise up.
The people who believe in bitcoin will continue to invest and that will keep the bitcoin from dying. Also since there are other coins that is always paired with bitcoin, their value seems to be attached to bitcoin. When bitcoin price goes up altcoins will also go up and when bitcoin is down altcoins also goes down.

Altcoins also support bitcoins, until they removed their pairing with bitcoin they can't really win against bitcoin.
It is like you can't win if your under with someone. First is to separated from the famous coins and build from the bottom.