Just going off a whim here but 013 and 015 are Beedrill and Weedle. If you take the first letter in each of the the pokemon, you get B/W. That's a possible hint that we are getting the B/W starters (or at least one). This first number is 318 which is Carvahna's Pokedex entry. The first pokemon that comes to my mind is Cloyster who would make a whole lot of sense being available in Ametrine at this point (and Clam Chowder).
Theory 2 on the numbers: B and W could also be two other Pokemon instead of B/W. The two Big Bs (no pun intended...get it cause Beedrill...I give up) I can think of are Breloom and Blaziken. Since Ame is going on a soup theme, Blaziken would fit better becuase of Chicken Noodle Soup. As for the W, Wailord I'm going to take a guess that it's Vinny's favorite pokemon, Weavile. So Cloyster, Blaziken, and Weavile (Hinting Amaria and/or Titania are the next Gym Leaders)
Edit: I forgot about Blastoise. I knew Blaziken was too good to be true.