On July 9, 2011, South Sudan became an independent state and on the 14th it became a member state at the United Nations.
Now that this has been made official, as per the United Nations, Google is rushing to revise their maps of Sudan.
A Google Maps Help thread asked Google to make the update. Googler, Daniel, from the Maps team said they are working on it.
He said:
How soon is “near future”? I am not sure, but Google is typically quick when it comes to major events being reflected on maps.
Forum discussion at Google Maps Help.