Along with Asia and Australia getting X2008 it is looking more than likely that dates for South America will be officially announced also. A tour promoter in Argentina has already announced a date for X2008 in November. I suppose they are trying to decide what dates she will be performing and how many cities she will do.
There are also whispers that she will be doing a few shows across North America. My guess would be that she would do Mexico City, NYC, LA, Toronto, and Montreal. I'm not going to hold my breath about it though. It probably won't happen in North America. :/