Bandai Namco announced on Twitter they are working on more DLC for Gundam Breaker 3.
When translated into English, the tweet says..
“We’re hard at work on downloadable content for Gundam Breaker 3 for PS4 and PS Vita.vThe total volume of the additional scenario will likely be about the same scale of the main story. There will be new playable Gunpla, too, so please look forward to it.”
Gundam Breaker 3 is currently available for Playstation 4 and PS Vita in Japan. You can also purchase the game in English from Play-Asia.