AK is going to be fairly well-rounded after Pandora/RoL open for business. About 75-80% complete.
After that, I'd say there's only some housekeeping left:
- Finding Nemo replacement
- Dinoland revamp
- One more C/D for Pandora
- Rafiki's Planet Watch replacement/revamp
- Australia or South America expansion
- Family-friendly D/E in Asia
It'll somehow be in far better shape than DHS and Epcot in terms of attractions/entertainment