Bitcoin may or may not survive, the technology behind it (blockchain) will survive, and keep the urge to harvest whatever the application in the future..
I don't foresee the banks doing all the future blockchain computing themselves without internet users free computer power, its very computer intensive, and it save big $.
Some companies/countries look at internet computer power as something to be harvested for free.
Some countries might even make it illegal to stop the country's asset management from using your computer power for their use (think china).
Imagine what a future billion computer power cluster is worth.
I am normally a technophile, but I do not foresee bitcoin surviving, particularly when they start to subvert individual countries control of currency. It will become an illegal form of currency just like it is in China.