From www.newsarama.com's DC Villains C2E2 coverage:
15:22
"Ares is definitely fun star in the constellation of Wonder Woman."
15:21
Snyder adds that "Ares pulls on WW's darker impulses."
15:21
"I want to do Wonder Woman. I have a whole story in my head where Cheetah. I feel like if WW is the one who stands between gods and men, Cheetah is cursed by gods and men."
15:20
Snyder mentions that he has a whole idea for Wonder Woman in her head.
Now this has me very interested. I hope Snyder gets to write this story very soon.