Agreed on the Lucky situation. It sucks, but I can understand it's difficult.
And like you, I too am concerned about the zoo's ability to expand the exhibit. I've gone several times, and I'm looking at the zoo on Google Earth now, and I'm trying to figure out where they could expand it. Elephants need a lot of space, and the new elephant exhibits that have been built the past few years have higher standards than ever. From what I can find, it seems this zoo has improved a lot the past few years, and I don't want a poor elephant exhibit to break that trend.