On South Africa,
the Gauteng local government have abandoned the plans to bring F1 back
However, I have read quite a bit lately on Argentina. Bernie seems to want to go back to Buenos Aires in 2011. And to be fair, they have solid F1 and motorsport pedigree, so not something I would mind. Plus there's the issues of France and the USA coming back in which no doubt FOTA will be pushing for, as they've got what they wanted with Canada