New details on the Avalanche Software/Warner Bros. Interactive Entertainment Harry Potter game have emerged, including a new release date and official announcement plans. Back in March, we learned Warner Bros. has planned to officially announce the Harry Potter game at the cancelled E3 event. Vague reports on the game have surfaced but it's been unclear what Avalanche has had in the works — until now. Now, Bloomberg reports the Harry Potter game will be an open-world RPG which takes players to Hogwarts and surrounding areas. The game's expected release date is set for 2021 and will be …