Come to think of it, since Johns has been out publicly (on Twitter) to say Rebirth isn't a reboot, doesn't it seem more likely that whats going to happen is that they bring things from the past into the current setting? Like you say, Ares going to back to the Lord Sauron look, Etta getting chubby (don't think they will change her skin color though) and more noble Amazons than throwing out the New 52 and go back to something closer to what was before?