Just finished booking one of these for December. Balconey does not "wrap" to the aft. From the one photo I found you can tel that it is about 150-175% wider than normal.
More important, from my reaserch, they were to be wheel cair accessable rooms but didn't make the inspection. No tub but a larger than normal bathroom with a no step up shower area. The cabin is at the end of the hallway at the aft. The actual door is around the corner so you enter the cabin in the "middle" compared to every other outside/balcony on the ship. The room itself is reported to be slightly narrower than normal. The "twin" beds are ment to remain seperate, but can be made into a queen. Problem would be the limited space to pass between bed and wall. Sitting area is said to have love seat rather than sofa.