This then is where I will concede and agree with those that say DAK will need more attractions, but only after sunset. When Pandra opens in 2017, there will be more than enough to do during the day. However, I have always been concerned about the walking paths and Rafikis closing after dark. This will also include the train as well not being available.
I think that long, long term, they will need to expand the park again. There is still one more expansion pad available that is of a good size. I also don't mind how the areas in DAK are laid out. Each section is very expansive with impressive rides and the best theming in Orlando. I think that adding one more land would be great.
I think that South America would be great along side Asia and Africa. It could be neat to have some ancient site near an outpost town. Maybe they could add an old outpost that the SEA members used including Indiana Jones. That would be another great restaurant and bar that would have a built in audience from the old Adventurers Club. Maybe there could be another coaster based ride as well. And all excuse me as I catch myself armchair imagineering again.
The South America idea is awesome. It's equally adventurous as the other two but with a new unique flavor.