Sonic Frontiers game director Morio Kishimoto said the game went gold and finished
He stated this on his Twitter account:
全ハードのマスターアップ完了です！
皆さん から 頂い た ご 意見 、 全て フィードバック 出来 訳 ではあり ませ ん が 、 締め切り ギリギリ 出来る こと は 全て やり まし。。。。
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さあ！次の仕事の始まりです！！— Morio Kishimoto (@moq_46) October 22, 2022
According to the Noisy Pixel translation, Kishimoto's messagesounds like this: “We have officially completed work on all the equipment! Thanks to everyone's feedback, we made it just before the release date, and it wouldn't have been possible without your support. Now that I think about it, it's kind of sad. Finally, it's been five long years we've been working on this together, so it's finally over... now! On to the next task!