I'm very excited to see how Hoenn has been redesigned in the new games. The leap between GSC and HGSS was fairly massive, given the stark difference in technology. While RSE had reasonably colourful settings and designs, I have a feeling the fact that the world is finally properly 3D, we're in for a bit of a treat.
Specifically, I want to know what the hell the attached image is. Many areas will get a big overhaul, but I really don't know what it could be. I'm assuming it's Ever Grande, but the building itself looks a little small to be the Pokémon League building.