>>39088208They're 3D, they just have a muddy blurred texture inside to emulate what the inside actually looks like.
That building may actually be a gym considering how huge and open it looks inside.
>>39088451This is most likely. They focused on all sorts of other shit in the Wild Area and the fact that he player can turn the camera so much that they didn't make the general area look as good as the more controlled routes we usually get.
>>39088525Did you not watch the trailer?
The red city is huge. That "straight line" is just the mainstreet of it. Both it and the Dragon city seem to have many branching streets and even a sense of verticality going by how the Dragon City looks on the map and how the player was going down outdoor stairs in the red city (though the former seems more like the path to some lower area that will be some kind of dungeon)