But there is nothing to worry about it now, BTC has a lot of success to make yet, the prosperity BTC is giving to its users is just beginning! The chance this hypothetically situation has to happen is near to 0!
That is a nice idea. I have made a comment here before and I state that if bitcoin will be gone tomorrow I will cashout everything today but after reading your comment I thought that instead of cashing out I will trade it to other altcoins who are also trustworthy. Possibly I will trade it to Ethereum, Litecoin and Pesobit which is a much better option than cashing out.