I personally don't really know what will come of it. It may 'succeed' (whatever that means) or it may fail completely. What is so special about it is that it's the first of its kind. It's something that's never been there before. It's merely a protocol or set of rules that everyone abides by, and can therefore transfer money. If someone decides not to abide by the protocol, it's immediately obvious (by definition) that he did something 'forbidden' and no one is going to accept their transaction or whatever they tried to do. It's basically a majority vote what the rules are. So there's no single entity in charge of the whole system. That's what makes bitcoin so incredible.

What can it become? I guess we don't know that as of now! I guess it's not the best system for day to day use in the supermarket. But may find its niche. It's awesome as a store of wealth, it's great for anonymous online shopping, it's unbeatable as a means of transferring small/medium and especially big amounts of money world wide in the matter of seconds!