It’s official – the Ace of Diamond anime is indeed returning in 2019. In our last article about the series we talked about the possibility of the show returning given the recent trend of anime announcements. The Promised Neverland, Dr. Stone and Fire Force have all been confirmed for a new season. The announcement appeared on the screen during an All Star baseball event in Tokyo:
先程神宮球場で行われたオールスターゲームⅢ内で無事に発表されました！ さらに今週28日(水)発売のマガジン52号では巻頭カラー&アニメ新情報もありますので、引き続きよろしくお願いいたします‼︎（担当Y） pic.twitter.com/PPinhBNV5G
— ダイヤのA (@diaace_official) November 25, 2018
It was also announced that more information will be revealed in the next issue of Kodansha Weekly Shonen magazine. That will be released on Wednesday, November 28th. So stay tuned and we will keep you updated with even more information when it is released.
Source: Ace of diamond official Twitter page