WB Games has released a new trailer for “Injustice 2” showcasing two more playable characters: Deadshot and Harley Quinn (and her hyena pets!). The sequel to the hit 2013 fighting game “Injustice: Gods Among Us” continues the storyline, with Batman and his allies work toward putting the pieces of society back together while struggling against those who want to restore Superman’s regime. However, in the midst of that chaos, a new threat appears that will put Earth’s existence at risk.