Reading rein's translation it seemed to imply that everyone would just have a tenth of their total gil in 2.0 As has been mentioned earlier that means that if you have 150,000,000 you would drop down to 15,000,000 or if you had 1,000 you'd end up with 100.

The other people who made this assumption seem to have been shot down, though honestly it makes FAR MORE sense than saying everyone over cap will be capped and everyone else will stay where they are. Basically it would just be a worlds wide readjustment to the value of each individual gil. (reducing 90% of the amount of gil in the game OVERALL thus making everyone's gil worth more, the rich would stay JUST AS RICH, the poor would still be JUST AS POOR, the only thing that would change is the exact number everyone has in their inventory.)

Clarification is most certainly needed here, but hopefully that will come with the official translation. (Though sooner certainly wouldn't hurt matters.)