I am not sure bitcoin could disappear. bitcoin have a large enough force to become better. Bitcoin is used by many people, and has provided many stores that accept bitcoins.
If talking about can disappear or not, the result will 50:50.. but in fact considering from a lot of factors that is very irrelevant in this time for saying if the bitcoin is can disappear with their volume,market cap and another factor will just like a stupid person if saying bitcoin can disappear in this time.