As one of the 3 biggest characters in all of DC Comics, Wonder Woman has never been given the proper credit she deserves. Superman has been on the screen in some way every decade since the 1940s and Batman has been on the screen in some form every decade since the 1940s EXCEPT the 1950s. Both Batman and Superman have had numerous animated series and live action films. If you count the origin series Gotham, Batman has had 2 different live action TV series while Superman has had 4 (Adventures of, Superboy, Lois & Clark, and Smallville). Wonder Woman has only had one live action series, no animated series, and 3 pilot attempts, all of which were failures.
With an animated series, Warner Brothers and DC Comics could further fuel the interest in a live action film. They could go the route Batman The Animated Series did, and take inspiration from the film or they could create their own original story. They could also add new villains that become canon as Batman and Superman did (Harley Quinn and Livewire were both introduced on the animated series). Plus, seeing the character in new animated adventures leads the fans to want to see a live action version of those stories. Plus, the Wonder Woman animated was met with great critical praise and sold very well also.
Her origins would definitely more than provide enough visuals for an animated series with the Gods and Goddesses and her rogues gallery. There would also be the visuals of Paradise Island/Themyscira. An island paradise could be interpreted in so many different visuals that the creative team would be able to really open their creativity. This also fails to mention the creatures that could be created to inhabit the island not seen elsewhere.
Unfortunately, the hard sell would be the fact that Wonder Woman is a female. Without a doubt, she is the most famous of all female characters and is much more able to stand on her own than many male characters. The problem is, so little action is devoted to females. This is another reason she would be a great candidate for an animated series. The name Wonder Woman would definitely entice viewers from her legion of fans, plus would be appealing to young girls. Now, if only the heads at Warner and DC would see what I see in the potential for the character...