Metal Bat and Tanktop Master will be playable in One Punch Man: A Hero Nobody Knows, the latest issue of V-Jump reveals.
Additionally, while currently unconfirmed, it seems that Tanktop Black Hole and Tanktop Tiger may also be playable.
One Punch Man: A Hero Nobody Knows is due out for PlayStation 4, Xbox One, and PC in 2020. A closed beta will run for PlayStation 4 and Xbox One from November 1 to 3.
Thanks, Ryokutya2089.