Dragon Ball Legends Official Twitter has announced that:
"Dragon Ball Legends" Introduces one of the three major game modes, "Story Mode"! In this "story mode", how can you experience a new story after the end of "power convention"! Advance the story and survive the unprecedented "super space-time battle royale"!The game will release in June 14, 2018. But the date is not fixed and may change. If you want to get notification when the game release, pre-register and we will notify you once it releases.
Pre-registration numbers have come to 2 million worldwide. Many videos are showing it is an amazing game.