That's the area I keep thinking should be the next expansion for DAK. The walk from the FOTLK to Pandora is pretty long. It's pretty odd the way they put the bathrooms for FOTLK there kinda in the of nowhere a bit -- almost like they were planning to put another attraction or something next to FOTLK across from the bathrooms.
In any event, I'd love to have a mini-land along that Africa to Pandora path. My suggestion has been to have a "Critter Country" with a North American theme and have attractions using animal IPs that aren't otherwise used -- like Bambi, 101 Dalmatians, Lady and the Tramp, Pocahontas, etc. -- which can also include the requisite M&G. Some smaller scale dark rides would be perfect for DAK.
Heck, you want to make fanboys squeal, you can put in a new version Mr. Toad's Wild Ride (though I don't think anthropomorphic animals like that work well in DAK).