I have done it with Unova, and I'm bored, so let's go.
1. +100 new Pokémon are expected to be introduced, which might not be the real number if there is a larger trend of introducing less Pokémon.
2.There won't be Gym Leader assumptions, even though they directly impact the distribution of species.
3.No new type is expected.
1-3-Rowlet-1 evo- 2 evo
I expect this guy to be a dual offensive wall breaker, similar to Blaziken, with high offenses on both sides and mediocre stats elsewhere. I expect it to be a little bit tamer than Blaziken with more Speed and Defense and less offense but yeah that's about it.
As for its typing I expect it to remain Grass/Flying, and if there is a type change I expect it to happen at its final stage.
4-6-Popplio-1 evo- 2 evo
I expect this guy to be an offensive bulky water, like Swampert. Its Special Defenses will be higher, and its Sp. Attack will be too.
As for its typing I expect it to become Water/Ice as it is literally a tropical Seel. Its movepool will also likely be close to it.
7-9.Litten-1 evo-2 evo
I expect it to be a fast little kitten, as even though it will evolve into a Tiger, the other tiger we had Raikou was also the fastest of the Legendary Beasts, so I expect this cat to be a traditional cat.
As for its typing I expect it to be a Fire/Dark, with mediocre(!) Attack and high Sp. Attack, with moderate defenses and poor HP. I expect fandom to go crazy about how it gets Bite but not Crunch like the previous kitties.
10-12-Trailerbirb-1 evo-2 evo
I expect it to gain a new typing, but I can't say anything for now.
13-15-Trailerdoge-1 evo- 2 evo
I expect it to remain its original typing.
Based off a Polynesian Rat, I expect it to evolve into a fast Normal/Water.
18-19-Regional Early Electric:
I expect it to be another two stage Pokémon. I expect its movepool to be similar to Heliolisk's, but I expect it to be another bulky sweeper like Ampharos and Luxray.
20-21-Regional Early Fighting:
I expect it to be pure Fighting like Makuhita-Hariyama, but more faster and less bulky. I don't expect it to be a three stagers.
I expect it to be similar to Vivillon, but I'm hoping it to be physically oriented.
I hope it becomes a Specially oriented Cockchafer since Scatterbug didn't evolve into one, or another venom moth, but I expect it to be another physical bug.
28-31.Sun Early Grass:
Probably based off Hibiscus.Offensive but slow
32-34.Moon Early Grass:
Probably a nocturnal species. Defensive but fast.
Probably another mammal set on Fire. Physically oriented.
Fast Special Sweeper.
Specially oriented. Either Rock/Water or Rock/Psychic.
Pure Psychic, Effectively a physical Reuniclus with more speed and less offense.
Sp. Attack oriented with mediocre speed.
49-50. Random two stage Ghost:
Speed oriented with status spam.
Speedy and Attack oriented with low HP.
Defense and Speed oriented with status spam.
Sp. Attack oriented with new Moxie and Intimidate variants.
Specially oriented with Sand Veil. Beach based.
61-62.Late mid-game Fire-type:
Physically oriented Magma based Pokémon. Fire to Fire/Steel.
63-66.Three staged Steel-type:
Part Ground. Physically oriented Magnezone-like stats.
67-68.Late mid-game Electric:
Another Speedy Special attacker, but part Psychic.
69-70.Late mid-game Fighting:
Specially oriented. Part Fairy.
72-75.Three stage Dragon-type:
Specially oriented with 540 BST.
Sp. Defense wall.
Bulky Sp. Attacker.
79-80.Random Artificial Pokémon.:
81-82.Random Artificial Pokémon 2:
Specially oriented. Not fast, but defensive. Part Psychic.
Part Fighting. Effectively Ursaring v.2.
Part Steel with Heatproof. Vanilluxe-esque balanced stats.
Part Fairy. Speed oriented.
Fire/Psychic. Defense over Speed.
Ghost/Psychic. Speed over defense.
Dark/Psychic. Has something similar to Aura Break, but has the same BST as Solgaleo and Lunaala.
Not a Pixie, but 600 BST.
600 BST with 700 BST alternate forme.