To answer the topic of the thread, here's my predictions:
Electivire, Magmortar, Weavile, Gliscor will all be available in the city due to the department store items.
The Oshawott line will be available across the water where Cain got his in Coral Ward.
Tentacool, Staryu, Slowpoke, Frillish (or some of them) will be available in all of the fresh water that's been purified.
Shroomish, Vullaby, Scyther, and maybe Bulbasaur/Treecko will be available via events somehow in the city. We might also get access to Axew or one of the pseudo legends via a complicated sidequest. Although this one is certainly a stretch, we might be able to get a Phione in the pure water but idk.
Due to the guy in 7th street mentioning how you can't catch the guy until the city's police have it together, I believe that we will be able to get Magikarp (or at least progress that event again).