CONFIRMED on 09/12/2014 by Disney on the Disney Blog – disneyparks.disney.go.com/blog/2014/09/frozen-attraction-coming-to-epcot/

It should be no surprise to any Disney fan the excitement for seeing Anna and Elsa at Disney World have been incredible. The princesses from the hit Disney movie Frozen have been at the WDW parks since late 2013: beginning at the Norway Pavilion in EPCOT and moving to Princess Fairy Tale Hall at Fantasyland in Magic Kingdom. Lines and wait times have been so long since this time that Disney has been testing a new standby line system for Anna and Elsa in order to not only help curb the long wait times but also give as many people a fair chance for a meet and greet.

As such, sources have confirmed to the Temporary Tourist Disney will construct an additional meet and greet location for Anna and Elsa back in EPCOT’s Norway Pavilion. While the previous location used for Anna and Elsa at the Norway Pavilion was quite small and unable to handle large crowds or even provide a line for FP+ reservations, the new facility should be large enough to accommodate these important factors. Our sources are unable to pinpoint the exact location within the Norway Pavilion where Anna and Elsa will be meeting guests at this time. Once construction starts at the Pavilion, we’ll obviously be able to get a better idea. We can confirm Anna’s attire will be her coronation day dress, but we’re unable to confirm Elsa’s attire at the additional facility.

The timeline for the additional Anna and Elsa Meet and Greet in the Norway Pavilion at EPCOT to open to the public is Fall 2014. Depending on construction start dates, it could be up to the end of the year as well.

On an additional note, our sources were also able to confirm Maelstrom will be updated to a Frozen-themed type of water ride. Speculation on this ride being changed to a Frozen theme has been rampant as of late. I personally heard of this rumor in several forums and Facebook groups, but our sources were able to provide confirmation.

The timeline on Maelstrom being changed to a Frozen theme water ride and open to the public is Fall 2014. As with the additional Anna and Elsa Meet and Greet, it could be up to the end of the year as well before this is completed and available to the public.