Alright, just for funsies, since it looks like only G1 mons will be getting Alola forms I'm dropping guesses as to what sort of Alola form typings certain G1 families will get and seeing if I get any right (and which ones I'm particularly hillariously wrong on). Some will be left out for various reasons (they're already revealed to not get an Alola form, there's factors that'd likely prevent them from getting one, there's a leak I accidentally saw I don't want to use to cheat, I just can't think of one, etc.)
Weedle line: Bug/Dark
Pidgey line: Electric/Flying
Spearow line: Dark/Flying or Steel/Flying
Ekans line: Some combination of Dark Dragon, or Fire
Venonat line: Bug/Fairy
Diglett line: Steel/something
Golduck: Psychic/something
Mankey line: Grass/something
Machop line: Psychic or Psychic/something. Alternatively Fighting/Fairy
Bellsprout line: Grass/Fire
Tentacool line: Water/Dark, Water/Psychic, or Water/Fighting
Geodude line: Steel/Grass
Ponyta line: Psychic/something
Farfetch'd: Fairy/something
Dewgong: Ice/Psychic
Grimer line: Fire, Fire/Ground, or Fire/Steel. (Lava Muk, yo!)
Shellder line: Dark/Steel
Gastly Line: Fire or Fire/Poison
Drowzee line: Fairy/Ghost
Krabby line: Fighting/Bug
Koffing line: Grass/Fairy
Tangela: Water/Poison
Kangaskhan: Fighting/something
Goldeen line: Fairy/Poison
Staryu line: Rock/something
Mr. Mime: Ghost/Fighting
Jynx: Grass/something
Gyarados: Dragon/Fire or Dragon/something
Snorlax: Some combination of Rock, Ground, Steel, or Grass
Dragonite: Dragon/Fairy, Dragon/Water, or Dragon/something else not Flying
Now let's wait and see.
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