From Gematsu: “Publisher Intragames and developer Digital Tales have announced Bookbound Brigade, a new take on the Metroidvania genre due out for PlayStation 4, Switch, and PC in 2019. It will be playable at Gamescom 2019, which runs from August 20 to 24 at the Koelnmesse in Cologne, Germany.”
Source: N4G PC 'Literary legends'-themed Metroidvania game Bookbound Brigade announced for PS4, Switch, and PC