For all intents and purposes, DAK provides a setting for what would have been Asian and African pavilions of Epcot.
The Asia section of DAK covers Cambodia, India, Indonesia, Mongolia, Nepal, and Thailand. The African section covers East Africa, especially Zimbabwe and Zanzibar.
Yes, there is a focus more on the animals of those regions, since this is the Animal Kingdom; but these areas are full of the local architecture, food, culture, music, and people of these regions. So much so, I don't think those cultures need a World Showcase pavilion. In some ways, the representation they have in DAK is better than what a WS pavilion could provide.
Time to remove the embarrassment of the generic Afrcian Refreshment Port of WS. DAK has it covered.