The official Pokémon movie website has updated. Translations follow:

Character Profiles

Characters profiles
	SATOSHI & PIKACHU A young boy who aims to become the world's greatest Pokémon Master. Pikachu: Satoshi's partner Pokémon who travels with him.
	ZARUDE A mythical Pokémon that decided to oppose the law of the forest and raise Coco. Data: Species: Rogue Monkey Pokémon Type: Dark/Grass Height: 1.8m Weight: 70.0kg Ability: Leaf Guard
	COCO A boy that was raised by a Pokémon and who believes he's a Pokémon himself.
	CELEBI A mythical Pokémon known as the guardian deity of the forest. Unlike normal Celebi, it has the alternate color pink. Data: Species: Time Travel Pokémon Type: Psychic/Grass Height: 0.6m Weight: 5.0kg Ability: Natural Cure
	THE ROCKET GANG A trio of Rocket Gang members named Musashi, Kojiro and Nyarth who swear loyalty to the Rocket Gang's boss Sakaki.

Story

Coco is a young boy raised by a Pokémon.
This summer, an all new bond between a Pokémon and a human will be born.

In the depths of a jungle in the middle of nowhere...

We find
Okoya Forest,
a Pokémon paradise operating with strict laws,
where outsiders are not permitted to set foot.

In this forest, young Coco was raised as a Pokémon
by the mythical Pokémon Zarude.

Coco is fully convinced that he is a Pokémon,
but when he one day meets Satoshi and Pikachu,
he's able to make his first ever "human friend".

Am I a Pokémon?
Or am I a human?

When danger approaches Okoya Forest,
the love between a Pokémon and a human, a father and a son, is put to the test.

Sources: http://www.pokemon-movie.jp/, https://www.pokemon-movie.jp/chara/ and https://www.pokemon-movie.jp/story/

Trailer and teaser

On May 13th, 2020, The Pokémon Company announced that the Coco movie would be delayed and they removed the original trailers from YouTube and subsequent airings on television which had the July 10th, 2020 release date at the end of them and replaced it with Coming Soon! (近日公開！).

Original Teaser 2:
Original Source: https://www.youtube.com/embed/dPcUf_GvlbI

Original Trailer 1:
Original Source: https://www.youtube.com/embed/AJ_7ZcklO9k