Thanks, for the starter, I'm thinking that I should pick something that might actually have type effectiveness to the wilds, but starts off with moves like scratch, like the fire starters usually do. I was thinking of something along the lines of sneasel, growlithe/houndour seem good too. And the time travel part is really basic, not even much battling, it's just for flashback purposes. Thanks for the thing about the town.
Also, I really don't want to say anything about the dad, but I will add more to the plot. I'm currently thinking of the name for the evil team, who are actually really evil.
As for the older characters, the idea was to make some of them Gym Leaders (not more than four or five) and some of them will be leader with someone else for double battle gym challenges. But I will also add numerous unofficial gyms too. The others would have been minor supporting characters in the plot, or at least will be mentioned, and several will be extra challenges at a later point.
EDIT: To ensure that all 493 can be captured I will make a few changes to the evolutions of several pokemon.
Electabuzz to Electivire/Magmar to Magmortar/Clamperl to Huntail/Clamperl to Gorebyss/Rhydon to Rhyperior/Dusclops to Dusknoir/Poliwhirl to Politoed/Slowpoke to Slowking/Seadra to Kingdra/Onix to Steelix/Scyther to Scizor/Porygon to Porygon2/Porygon to PorygonZ
Previous Method: Trade while holding a specific item
New Method: Level up while holding the specific item.
Eevee to Espeon
Previous Method: Level up at daytime with Happiness.
New Method: Level up while holding sun stone with Happiness
Eevee to Umbreon
Previous Method: Level up at night time with happiness
New Method: Level up while holding moon stone with Happiness
Eevee to Leafeon
Previous Method: Level up at Moss Rock
New Method: Level up while holding Miracle Seed
Eevee to Glaceon
Previous Method: Level up at Ice Rock
New Method: Level up while holding Nevermeltice
Magneton to Magnezone/Nosepass to Probopass
Previous Method: Level up at a specific location
New Method: Level up at Mt.Silver (locations may be added/changed)
Sneasel to Weavile/Gligar to Gliscor
Previous Method: Level up at night with a certain item
New Method: Level up with that certain item.
Happiny to Chansey
Previous Method: Level up with Oval stone at daytime
New Method: Level up with Oval Stone