I'll go ahead and tell you what you'll be seeing. We'll be having a variety of different lands, which do not make appearences in BW, giving it its own feel. The tiles will also be completely different, even if they have been in BW. The only reasons I think you think it's too different is because all you see are the basic tiles: beach, ocean, trees, grass, tall grass, etc.
You'll be seeing:
Farmland/Rice fields
Autumn/Spring Forest
Geyser Fields/Volcano
Plains/Dry Expanses (I really don't know how to desribe it, but it's a desert, but without the sand. It's pretty much like Arizona)
Mountains/Snow/Rope Bridges
Marshlands
Coral Reef (acts as Safari Zone)
The wide variety of biomes is something that relates to the storyline a bit. I hope you can see how the tiles will vary. :P