Beyond question bitcoin will not disappear if we are talking about the short run because there are no objective reasons which might bring about it.  Nowadays bitcoin is, actually, the foundation of the crypto market. we should not forget that bitcoin has the well enough capitalization, enormous amount of transactions and finally bitcoin is a world brand.
Several last years I read lots lots of various topics and articles which kicked off the discussion about the future death of bitcoin and what? Bitcoin is still alive and plenty of people utilize bitcoin every day as and earlier.