E3 2016 - Injustice 2 promo image leaked ahead of reveal!
You just can't stop leaks ahead of E3, many try and many fail. A while ago we got word that Injustice 2 would be revealed soon and launch in 2017, not it appears that's definitely happening as sources have found what appears to be an image of Batman and The Flash doing battle.
Batman V Flash, who needs Superman?
Injustice Gods Among Us was a fantastic game set in the DC Universe and it was almost a given that a second game would appear, it just remains to be seen what's in store. With E3 days away all we can do is wait for more info!
Source: http://www.polygon.com/2016/6/7/11876346/leaked-promo-posters-show-off-injustice-2