Yes. So much focus on Harley/Joker/Batman. They could easily play up Deadshot being a former Bat villain throw in Katana likely being a spy for Batman.
When I think Suicide Squad I still think Waller/Tiger/Deadshot/Boomerang/(Nightshade). I know Harley has taken over the female lead position in the nu52 and she sells tickets. But I'm dreading the movie becoming a prequel to a Batman vs. the Joker movie. No Bronze Tiger and Nightshade in the movie. I didn't see Boomerang at all in the trailers. Just a lot of the characters who have Bat-tie ins.