It seems Microsoft (via the Xbox.com website) have removed the Neill Blomkamp announcement, the previous URL now leads to a 404 page error. There can be a number of explanations for this:

The announcement may have been premature
This could suggest the contract details or some other finer points had not been concluded at the time of publication. This would call for a retraction of the statement to conform with a confidentiality clause.
The article was wrong
It’s possible that someone could have screwed up or alternatively messages may have been mixed. Neill Blomkamp’s role may not be as big as director, he could just be running the special effects department. But considering the AICN interview and the words from Blomkamp’s mouth this is highly unlikely.
The site messed up
It’s just a problem with the site – I like this explanation.

Well this is all just speculation; such activities are confusing and in the past have pointed to PR disasters etc. My hunch is that this is nothing but I bring it to your attention anyway just in case.