There are considerable chances that in the next years bitcoin may achieve worldwide adoption, as a global cryptocurrency. I hope that happen as soon as possible. That way all of us could benefit from it.
I don't think there is worldwide adoption is work for bitcoin community but I am sure that bitcoin is being use by some fortune 500 companies in future and price of the bitcoin will increase gradually without any doubt and most of countries will try to adopt bitcoin as their countries centralised payment mode.
it is a dream right now, but it can happen. and the chances for a global adoption are rising with every year bitcoin still exists and with every financial crisis that occurs. but only time will tell and we could all do our part to help. just start using it as currency, even it is for small amounts.