Maybe to make up for all those times she jobbed to Bat-characters we can have a Cheetah vs. the Bat-family showdown.
I could see current Ares pretending to be on the side of Villainy Inc as a way of clearing out some competition in the pantheon but turns on them at the last minute like he did Rucka's first run when he killed Hades. to takeover the Underworld