It can obviously change in the long term the biggest thing it boils down to is what price Bitcoin ends up near, and how much people are willing to spend it then. If we end up north of 6 figures I think you can safely assume it will become used currency worldwide and even legal tender in some places. That being said, I am not optimistic about Bitcoin becoming used currency until 2020 but after 2020 I would be extremely confident the network will be available worldwide at a moment's notice and that is when you will see the true power behind the Bitcoin network.