There are 200+ Pokemon being added to Pokemon S(w)-0-y'd and Shilled.

>Who got snubbed before that you want (need?) to come back?
>Who do you think won't make the cut?

Confirmed thus far:

Isle of Armor:
Psyduck
Golduck
Magnemite
Magneton
Magnezone
Happiny
Chansey
Blissey
Hosea
Seadra
Kingdra
Azurill
Marill
Azumarill
Zorua
Zoroark
Larvesta
Volcarona
Fletchling
Fletchinder
Talonflame
Dedenne
Rockruff
Lycanroc

Crown Tundra:
Nidoran (female)
Nidorina
Nidoqueen
Nidoran (male)
Nidorino
Nidoking
Zubat
Golbat
Crobat
Elekid
Electabuzz
Electivire
Smoochum
Jynx
Spheal
Sealeo
Walrein
Beldum
Metang
Metagross
Gible
Gabite
Garchomp
Cryogonal
Amaura
Aurorus

Legendaries:
Articuno
Moltres
Zapdos
Entei
Suicune
Raikou
Ho-Oh
Lugia
Regirock
Regice
Registeel
Groudon
Kyogre
Latias
Latios
Rayquaza
Uxie
Azelf
Mesprit
Dialga
Palkia
Heatran
Giratina
Cresselia
Tornadus
Thunderus
Landorus
Xerneas
Yveltal
Zygarde
Tapu Koko
Tapu Lele
Tapu Bulu
Tapu Fini