6) Lady Blackhawk
Marvel have made their throwback character, Captain America, a huge success against all the odds on the big screen. If DC fancy having a go at this sort of thing, they can always introduce Birds of Prey member Lady Blackhawk into the DCEU.
Like Cap, Zinda Blake AKA Lady Blackhawk is originally from the 1940s, being an ace aviatrix during the war. However, she becomes lost in time (because comics) and finds herself in the 21st century. Unlike Cap, though, Blackhawk is a hard-drinking brawler and doesn’t share his old-fashioned ideas of straight-laced heroism.
Also worth noting is Lady Blackhawk’s unconventional best friend and fellow Bird of Prey Big Barda, as she’d be another fun character to see brought to life. A super strong New God from the Fourth World, Barda was raised to be the universe’s greatest warrior, until she turned over to the good side.