The reports of Anna and Elsa being split up inside Princess Fairytale Hall was somewhat misleading. The duo still exist on one side of the Meet and Greet, they are just not posing together for photos. They are still in the same room and Cinderella and Rapunzel are on the other room. Aurora and Snow White have been removed from the attraction and are currently meeting on Main Street USA.
June 17, 2014: Thrillgeek.com posted that Anna and Elsa have been separated, but it sounds like the original description was misleading. The duo is still in on a single side of the Meet and Greet, but are treated as two separate princesses as opposed to meeting guests together.
June 5, 2014: Thrillgeek posted on Twitter that Anna and Elsa are rumored to be split up in Princess Fairytale Hall.