The publisher released the following statement:
We are very sorry to announce that Song of Memories will be delayed to 2019. While we had hoped to bring you the game this year, we have seen unexpected development issues that are not related in any way to the platform holders. We are doing our best to bring you the game as early as possible and we will communicate a release date in the new year.
While the console versions of Song of Memories are still unavailable in English, the PC version (Steam) features full English, French, Japanese, and Chinese (Simplified and Traditional) text support with Japanese voice-overs.