Corocoro Comic October 2024 Issue (月刊コロコロコミック 2024年10月号) was published by Shogakukan on September 13th, 2024. There was a page dedicated to this episode and the announcement of the new arc.

Oliva, Galar Fire and Laplace from the Six Heroes come out of their balls on the Brave Asagi's Wing Deck! Liko decides to test her strength against Oliva, Roy against Galar Fire and Dot against Laplace!! WE PLUNGE INTO A NEW CHAPTER! ITS NAME IS...
POCKET MONSTERS: RAYQUAZA RISING

Liko and Roy's new adventure starts October 11th! What lies in wait is a certain legendary Pokémon!!
RAYQUAZA DESCENDS ONCE AGAIN!!
*It appears Rayquaza is the key to this story.

THREE HIGHLIGHTS OF THIS NEW CHAPTER:
You can get a preview of Rayquaza Rising's highlights from its key visual!
1) THE SIX HEROES GATHER?!
You can see Basagiri and Entei on the key visual as well! Does that mean all the Six Heroes will finally be together?!
*Three of the six have currently joined the group. Where could the remaining three be...?!
2) HOGATOR EVOLVES?!
Roy's Hogator finally evolves into an Achigator?!
*Corocoro has been supporting Hogator all along and will be paying close attention to what's about to happen!
3) NEW CHARACTERS ARE CONFIRMED TO APPEAR!
We're also going to meet characters from Pocket Monsters Scarlet/Violet: The Hidden Treasure of Zero; Seille, Sazare and Briar.

Corocoro recommends these two episodes:

Scheduled for September 27th: "Shine, Terastallization! Liko VS Roy!!"
We can't reveal any details on this episode yet, but... take a look at that title! Will we get to see the result of Liko and Roy's Terastal training?! Massive Pokémon anime fan Nitoryu Koma is super excited for this episode from the title alone! Make sure to check it out!

Scheduled for October 11th: "Taking to New Skies! The Brave Asagi!!"
Oliva, Galar Fire and Laplace from the Six Heroes come out of their balls on the Brave Asagi's Wing Deck! Liko decides to test her strength against Oliva, Roy against Galar Fire and Dot against Laplace!!

A press release was published on September 13th, 2024 which revealed the key visual for the Pocket Monsters Rayquaza Rising arc.

The popular anime Pocket Monsters (airs on the TV Tokyo Network every Friday at 6:55pm, officially abbreviated "Anipoke") sees its story about protagonists Liko and Roy approach its 4th chapter, titled "Rayquaza Rising".

A new main poster has just been unveiled, depicting the Black Rayquaza and the other members of the Six Heroes that serve as the key to the story, as well as characters from the video game Pocket Monsters Scarlet/Violet: The Hidden Treasure of Zero.

In this poster for chapter 4, "Rayquaza Rising", we can see Liko, Roy, Dot and their Pokémon with courageous looks on their faces as if they're in the middle of a battle, depicted alongside the remaining members of the Six Heroes; Basagiri, Entei and the Black Rayquaza. We can also see Roy's Hogator evolved into an Achigator and Dot's Kanuchan evolved into a Nakanuchan.

In addition, we can see Seille, Sazare and Briar from the video game Pocket Monsters Scarlet/Violet: The Hidden Treasure of Zero, as well as Gardie (Hisui Form) and Yabasocha, all of which further increase expectations for the upcoming events. Further information on the new chapter Rayquaza Rising will be released weekly from here on.

アニメ『ポケモン』新章突入、副題は「レックウザ ライジング」に決定 ゼイユ、サザレ、ブライア登場!

人気アニメ『ポケットモンスター』（公式略称：アニポケ　テレビ東京系 毎週金曜 後6：55～）で、主人公リコとロイの物語が第4章を迎え、副題が「レックウザ ライジング」に決定した。

ストーリーのカギとなる黒いレックウザをはじめとした六英雄ポケモンや、ゲーム『ポケットモンスター スカーレット・バイオレット ゼロの秘宝』に登場する人物たちが描かれた、新たなメインビジュアルが初公開された。

第4章となる「レックウザ ライジング」のメインビジュアルには、残りの六英雄ポケモンのバサギリ、エンテイ、そして黒いレックウザと共に、勇ましい表情でバトルするかのようなリコ・ロイ・ドット、そしてポケモンたちが描かれている。さらに、ロイのホゲータがアチゲータに、ドットのカヌチャンがナカヌチャンに進化している様子も。

ゲーム『ポケットモンスター スカーレット・バイオレット ゼロの秘宝』にも登場するゼイユ、サザレ、ブライアの姿や、ガーディ（ヒスイのすがた）、ヤバソチャも描かれており、今後の展開に期待が高まる。新章「レックウザ ライジング」編の続報は、今後毎週解禁していく。

The official Japanese Anime PR Twitter account posted the key visual for the Pocket Monsters Rayquaza Rising arc on September 13th, 2024.

Pocket Monsters Rayquaza Rising:
A new chapter of the Pokémon anime starts Friday October 11th! Here is its key visual! It even shows some people from the Land of Kitakami that will be appearing in the future! Look forward to it!

ポケットモンスター　レックウザ ライジング
10/11(金) #アニポケ 新章スタート！
キービジュアルを公開
今後登場するキタカミの里の人々の姿も！
お楽しみに！