At their recent tenth anniversary event for the series, EXAMU had an early Christmas present for Arcana Heart fans: during the event, producer Koji Takaya came on stage to announce that a new Arcana Heart game is currently in production.
First launching in arcades in 2006, the Arcana Heart series has had 3 numbered installments so far. The last of these, 2009’s Arcana Heart 3, has also had 2 major updates (2013’s Arcana Heart 3: LOVE MAX!!!!!, and 2015’s Arcana Heart 3: LOVE MAX SIX STARS!!!!!). This new announcement likely represents the first new numbered installment of the game in 7 years.