DH and I have long said we'd be first in line to add on at AKL. There is some question as to whether they would construct anything there, due to stress on the animals and the likelihood of having to close down the savannah during construction. However, we've discussed it and think they could build the units on the opposite side of the savannah and mirror them to the AKL building. They could do a hotel-style building that curves around just like the lodge to form another half-circle around the back half of the savannah.
Like many have said, the chances don't seem very good, but there is a lot of interest, so you never know!