Bandai Namco has now officially announced My Hero Academia Ultra Rumble, coming to PS4, PC, Xbox, and Switch, with a PS4 Beta Test happening soon, but you might reconsider signing up for it.
When is the My Hero Academia Ultra Rumble Beta Test?
While you can easily register for the Ultra Rumble Beta Test by google translating the registration page, Bandai Namco has mentioned the Test is only open to Japanese residents.
My Hero Academia Ultra Rumble is the first battle royale for the series, and a free-to-play game.