This is another short one.
Here's what Katana looked like in the New 52:
In Suicide Squad (August 2016), she looks like this:
And in Suicide Squad: Deadshot and Katana #4 (April 2016), she changed her outfit from her New 52 look to this:
Now I know what you may be thinking: those dates don't line up. But when you consider how long Suicide Squad was in production, and that they first released pictures of the characters in May 2015, it makes more sense