Poster is so awesome. Why isn't it June?
I'd imagine so, unless there's a change in ideology at Warner Bros. Their current animated movie strategy -- release nothing but Superman, Batman, and Justice League films -- suggests the higher-ups have no faith in DC's other characters as solo properties. Bombs like Green Lantern and Jonah Hex are likely used to strengthen this view, however myopic WB's standards for these things are.
Which would work out terribly for them, as they likely want to (and should) keep Batman on ice for a couple years. Man of Steel bombing means they got no new summer blockbuster franchise, and they aren't going to feel at all confident moving forward with Justice League (which is looking shaky as is).
That said, "Arrow" and the in development Wonder Woman show means they are more willing to do television projects with their characters. So who knows: that may well becomes DC's domain.