Well, I have a rather strange point of view on the matter.
I'm thinking that the globalization institutions and agents that we have now will finally win, but this at the same time will be their end. They were created to function in a divided nations environments. If their globalistic dreams come true one day, they will discover that they would not be able to function (in their present form) in a new society.

Consider it: one currency, one market, one language, one government, one set of laws everywhere. One thing that pops immediately in mind - no currency trade, no difference in prices and laws, no customs. Well, our technological advances doesn't stop - we travel faster and much more - transportation costs will get lower and lower (the transporat fraction of added value also gets lower), etc. This is just a small list of changes this world is going to adopt one day.
So, Johanna, you can put your mind at rest - no present government will exist then.