Leaks of this month's issue of CoroCoro have revealed more new Pokémon to us:

First up is the fish
Yowashi, a Water-type which has a Single Form and School Form
Next the possessed sandcastle
Sunabaa and its evolution
Shirodesuna, both of which are Ground/Ghost
Bewear's pre-evolved form
Nuikoguma remains Normal/Fighting-type

Alolan Meowth is a special Dark-type breed from the royal family of Alola, and Alolan Marowak adapted to predators in Alola and became Fire/Ghost-type
The final page reveals Team Skull and their leader
Guzma (the one with the strange glasses), and another member named
Plumeri (pink hair)
CoroCoro promises a poster of Rockruff's "secret evolution" next month