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.