So yeah, got to Mossdeep and after a rather long cutscene I'm finally given the ability to run around Mossdeep City and it's looking great! It's laid out just like how it was in the original game, with some additions! They added a ramp so that you can run right up to the rocket ship. Also the "marsh" area sort of has a little alcove within it. But other then that it's still Mossdeep City.
So when you first start the game there's a few characters around. At Steven's House there's a little boy standing in front of it and says that there's something invisible blocking the door (which is odd. All the other house doors are locked, yet for some reason they felt like putting an invisible Kecleon in front of Steven's? Why? Is that what Steven got the Devon Scope, there was a Kecleon blocking his house?) and nearby there's a boy who says Steven likes giving out stones (Mega Stones perhaps? And yes, I know in the original game the boy gives you a King's Rock). Steven is blocking the Pokemon Center while two PokeMart owners are blocking the PokeMart and its revealed that the Mossdeep PokeMart owner is the older brother of the Oldale PokeMart owner. Tate & Liza are in front of their Gym which I guess, if it wasn't for the hacking, this would be out first glimpse of their new design. Obviously if you go inside the Gym they yell at you so I continue on toward the space station. On the way there's a sailor who mentions Wailmer vanishing near Lilycove (a cute reference), a girl talking about the White Rock (she gave a lot of allusions to Jirachi mentioning wishes and wish tags, maybe if we bring Jirachi to the White Rock something will happen?), and finally there's a guy on the ramp to the rocket that mentions you normally get around Hoenn's water routes by boat or using a Pokemon to Surf. Also after beating the first playthrough Professor Cosmo's assistant blocks the door to the Space Center telling you Cosmo had to go somewhere but gives his regards rescuing the Mega Pokemon (so apparently the Professor in the first cutscene that called over Steven was Professor Cosmo, neat cameo though he looks like every other scientist, including his own assistant).
Now those are the trainers who are constantly there. As you complete the game you'll meet a few more:
First there's 3 characters you may appear on the isolated beach area. They can either be 3 Magma Grunts, 3 Aqua Grunts, 3 Swimmers, or Flannery having an interview with Gabby and Ty. For the 3 swimmers one talks about swimming to Kalos (I don't care how good of a swimmer you are, you're swimming across an ocean, you'll drown way before getting to Kalos) while the others talk about staying in Hoenn and becoming a Scuba Diver (male) and Free Diver (female), hinting at the new underwater trainers. Flannery giving an interview with Gabby & Ty is nothing special, just Flannery flubbing her lines about being the new Lavaridge Gym Leader and Gabby & Ty asking her questions (I just find it odd they decided to have an interview with the Lavaridge Gym Leader in Mossdeep...). As for the grunts, even if they're a different team they say the same thing: One is worried about having come to the wrong place to meet, another explains that they never travel together but rather meet at a specific location before splitting up when they leave, and another that explains their boss is scary when they get really angry. Shouldn't only one group say that and the other sort of be the opposite? Like instead they do travel together?
Next right between the Pokemon Center and PokeMart either a cyclist, scientists, of Rich Boy appears. The cyclist talks about Rydl (and yes, he does repeat "Rydl" a few dozen times), the scientist says he's looking for Shroomish but can't find any so is heading back to Rustboro (hint we should bring a Shroomish to Rustboro?), and a Rich Boy who talks about how good it is being rich (which is good to hear, I know he can pay for that dentist bill after I punch him in the jaw).
Next 2 characters appear on the lower platform in front of the incline leading up to the Space Center: Brawly & Roxanne, A Black Belt & his son, and Mr. Stern & a worker of his named Dock. For Brawly & Roxanne, Brawly says he can't lower his body-fat ratio any more then he has so may start doing squats (isn't it actually unhealthy to be that fit?) while Roxanne gives him a "You rock" pun (so, why are they in Mossdeep?). The Black Belt & his son has to do with the "Mauville Food Court" which I'll talk about later. Finally Mr. Stern (who looks like he got a unique model) and Dock are just talking about boat designs (being they're in Mossdeep maybe they're thinking about strapping a rocket to a boat?).
Second to last, someone will appear in the area that gives you a panning shot of the rocket. It's either a woman who doesn't really say anything important or Wattson... who also doesn't really say anything important.
Finally all th way on top between the house next to Steven's and the Gym there will either be a old guy who says something about Sea Mauville (which I'll get to), a gentleman who's a Fossil Maniac, or a Shroomish (hmm, I wonder what would happen if we got that scientist guy looking for Shroomish and Shroomish at the same time?).
Anyway, that's all that I got so far. OH! And on a random island I found Lisia of all characters just standing around talking about sneaking up on Pokemon. Speaking of which...