Today, a building permit was filed for the new stage coming to The Wizarding World of Harry Potter. This goes with the notice of commencement filed last month. According to the permit, the new stage will be 2.5 feet off of the ground.
On 10/18/2012, Universal Orlando submitted a notice of commencement for a new stage to be built at the Wizarding World of Harry Potter, which can be seen below.
One can assume that this will be installed where the Frog Choir and Triwizard Tournament show take place in order to give spectators a better view of said shows.
Universal is also adding another "Human Dryer" to Jurassic Park.