Accoridng to the article, MOFCOM has asked certain companies refile their applications for review as the rewied-period approaches completion. Although this appears to some as though the review process might be changing, Dr. Zhou comments that "if this is becoming a general trend, they may delay more cases in this way in the future. That would be shocking news." (FT, 3/8/2013)
Please see the article on the Financial Times website for more of Dr. Zhou's comments and the full article.