Arrowverse co-creator Greg Berlanti has since confirmed that the appearance of the Suicide Squad and Amanda Waller on Arrow was indeed a test run for the eventual movie.
While audiences got their first look at the live-action Amanda Waller of the DC Extended Universe in the form of Suicide Squad’s Viola Davis, the character already had a loyal live-action fandom as presented on The CW series Arrow.
If a return of some sort for Waller was in the offing on Arrow, it would likely have to accomodate Addai-Robinson’s newly busy work schedule.
However, Addai-Robinson has now indicated that she might return to the role of Waller if asked – and that such an event is not impossible.