Yesterday over Twitter Ed Boon @noobde anounced "Ok, if all goes to plan... HUGE character reveal & game play video coming out tomorrow!" Apparently all went as planned and it was announced today that Doomsday would be the newest addition to the Injustice character roster. The trailer shows quite a bit of action between Doomsday and SHAZAM! showcasing the characters as well as the games use of environment and juggling mechanics.
Enjoy the gameplay footage.