I think Disney were pretty short sighted when they build all these new Princess meet and greet areas in the Magic Kingdom. They have an area for each 'main' Princess (so basically all of them except Mulan and Pocahontas), but have left no room to add anymore in the future without building something new or getting rid of one of the Princesses that they already have meeting. They should have built an area at the Mine train for Snow White and kept the Tangled bathrooms as a Rapunzel meet and greet. This would allow them to put Anna, Elsa and maybe even Merida in the Fairytale Hall. Or they could have just moved Merida to the Fairytale Hall and had Anna and Elsa in the current Merida meet and greet area which would take the pressure of the Frozen meet and greet at Epcot.