Alright now this has some good things in it. Let's start with the big picture. This is without a doubt, a hotel.
In fact calling it now:
It's Hotel Horsea. I'm also calling that's its the first gym as well, and that the game will go back to black and white's style of making leaders have other jobs. As further evidence that this is a hotel( besides the obvious design) is that the furiside npc has a suitcase. Also above the protagonist in red( no way this isn't the male one), are 3 silhouettes. To the left of the horse are two water types that I can't make out. I think they are both new. Perhaps one is the starter.
Let's focus on the protagonist. He looks very similar to Red. I think this is a callback and that we will see a lot more like these.
Now let's move one to the other shots here.
Let's look at the one with the yellow car. I believe this is an inn, and owned by the guy with Machamp, as that looks like his car, and it appears he is to the right of it. Could be wrong though. But this is definitely a small inn. Perhaps like Kalos, towns will have small inns, and then they could have the first city have the World Famous Hotel Horsea. Maybe that's where the backwards waterfall is?
Also the inn pictures suggests that the routes and towns are massive, so I'm getting excited for this! Now the picture next to this is very interesting....
the main character is in a room that looks like a hotel room. It could be a house but who knows. There are two intriguing things here:
1) This is a different trainer then the guy in Red, but they appear to be male. Does this confirm customization is back and much more expansive?
2) They are bent down in front of what looks like a Pokemon. It's read and could be a beaver or bear it seems. Thoughts?
Now the last two pictures depict a house( maybe your starting one?) and several different rooms. Don't know what to make of those rooms though....