In "Batman: Arkham Origins", you get multiple Easter eggs, Easter eggs like: Metropolis, Coast city, Central City, A Poster of zatanna, Blaze comics, Queen Industries, and Chase away your blues.
As you probably know, Metropolis, Coast City, and Central City are homes of Superman, Green Lantern, and The Flash, then there is a poster of zatanna. Blaze comics is where booster gold comes from and Queen Industries is Green Arrow's company. Finally, Chase away your blues, Cale Anderson's company and Wonder Woman's enemy. So, does this means a JLA game is coming up involving the characters Superman, Batman, Green Lantern, The Flash, Zatanna, Booster Gold, Green Arrow, and Wonder Woman?