your opinion is highly appreciated.
It might depend on the reason why Bitcoin can die. In case when the death is due to total ban of Bitcoin as done by all governments or regimes then there is a possibility that Bitcoin death can also mean the death of altcoins. Now, if the reason can be other than that or it is within Bitcoin like losing the appeal from the market then there is a possibility that another coin can rise up to take the vacuum of leadership.
If the question is about ban by the all country of the world then it is possible to die all coin, if some company purchase bitcoin then it is impossible.