What concerns me a little is Suicide Squad creator John Ostrander didn't find out about the movie deal until the morning it was announced. I understand that when a comic book movie will be made, they don't necessarily have to talk to the actual creator. It just makes more sense to include them. Who else really knows the property and characters?
Talking to MTV, Ostrander gave his thoughts on who he thinks should be in the movie.
“I think that [government liaison to the team] Amanda Waller is a necessity,” said Ostrander. “Ditto for Deadshot, Rick Flag, Bronze Tiger, Nightshade, and the original Captain Boomerang.”
It could be difficult to get the rights to all these characters but, as mentioned, none have appeared in any movies before.
Ostrander also mentions that he hasn't been contacted about the movie but is not ruling out the possibility.