Compile Heart recently teased us a new game in the series for the upcoming PS5. They first showed the game's logo along with the PS5's logo. Will it be a new mainline game, after 5+ years of waiting? We'll have to see until September hits.
CH has announced that there will be more details on the new game coming on the 9/17 issue of Weekly Famitsu (see Twitter link).
Weekly Famitsu announces that the game is a remake of Re;Birth1 (Plus) with over 20 playable characters from the start, and new features such as the fishing minigame.