I think what kh fan 4e means is that a lot of the new abilities and ways of fighting (eg: drive, fighting armies of heartless, things like that) will be introduced at the Land of Dragons. Nomura has stated before that's one of his favorite worlds in KH2. Plus, it's one of the most visually stunning worlds seen so far. It'll be a fun world and probably one of the first worlds we go to in KH2.