It won't matter if it does unless you're speculating. (Or holding onto a non-trivial number of bitcoin for whatever reason.) Bitcoin has proved it's point, that a decentralized currency is possible, and that it can be done practically and used for real transactions.

As a proof of concept, bitcoin is a huge win for anarchists and libertarians everywhere. So in that sense, I don't think that it's original author really cares.

I think that if it does "crash" the crash will be caused by regulatory pressure, or it will live to see the end of bitcoins being issued in whole.

EDIT: In the short term, I would not be surprised if the currencies value takes a sharp drop.