A series of Easter eggs point to us seeing more of Batman in Suicide Squad: Kill the Justice League, presumably as part of a forthcoming post-launch update.
In-game calendar pages posted around the game’s Metropolis map have been spotted by Batman Arkham Videos, and verified by Eurogamer. Each features a circled date, with a hidden code that spells out a secret message.
Substituting the date marked on each calendar page (the eighth of January, for example) with the corresponding letter of the alphabet (H, the eighth letter) spells out the following phrase: “He Will Return”.