It seems to me, and someone can correct me if I'm wrong, that one of the biggest issues with any MK expansion would be current backstage areas/show buildings. If you look at the picture posted above, most expansion areas are directly behind backstage areas and show buildings, which would necessitate blocking the view of these areas from guests. Also, the pathway to get to an expansion in the area northwest of BTMRR and TSI would seemingly have to go through a backstage area as the FL pathway dead ends at BTMRR-the new path would have to go behind BTMRR or around and behind HM. Nothing impossible, but definitely something that would take some planning. I would be very interested to see how they would achieve this.