Actually upon further looking at it the picture looks photoshopped to hell.
The building connected to the wall in the "Leaked" reddit photo looks EXACTLY like the old meet and greet location for the sisters one in Disneyland's fantasyland. Considering how this building is not in the film at all why recreate it down to identical snow patterns on the roof for our attraction? Sounds like someone just shopped this photo onto a wall into the water and voila "Frozen Attraction" shot. And not to mention the Elsa head perfectly looking like it does in the film despite hearing that this ride would be using rear face lit animatronic makes no sense for it to have that much detail while it's off. Plus why would they have elsa in her non classic upbraid look?
And the olaf in the photo is in an IDENTICAL position to this still from the film.
Without a doubt this image is this is fake and we should all treat it as such.