Depends. What happens when we turn left or right? Does the camera auto position itself to behind the character or are all the towns along a straight route?
As the trailer shows, in the forest part where that girl follows you, the camera stay put while you turn around. I'm guessing these games will have the same shifting camera Black and White had, like when you're at Pinwheel Forest and you have an overhead angle, but when you exit the area towards Skyarrow Bridge, you have a back angle of the character.
Played: Pokemon Black (and White). Progress: Finished both, with complete Pokedex in Black. Playing: Pokemon Conquest. Progress: At the post-game.