Money changed its shape through the history. As from non-monetary exchange to the need of having money. Fast forward to our current banknotes which are in my opinion slowly dying with bitcoin taking over. Many discussions are being held if bitcoin can be the primary currency in the world. Let's assume it can be. Everything has an end so what do you think will come after bitcoin? What will money look like hundreds of years from now? I predict its gonna be digital of course but I'm interested if its going to be a cryptocurrency or something else.
what happens after bitcoin there will definitely be something new we are still waiting for all of that. the main purpose of now bitcoin will be able to increase more than before. hmm.. there are still many things that must be discussed about the history of world development and we can only look forward, if bitcoin becomes a world currency I think it is fantastic 
So, technology like blockchain will be developed so that it can become cryptocurrency 