The story didn't wait 'til issue #9 or beyond to give us Apollo or Ares or Heph or Hermes or Eros or Hades or Poseidon or even newly minted demi-god Lennox. Zeus is missing, so he obviously doesn't show up, but is talked about much. So how many of the 'main' male gods got left out thus far? Dionysus perhaps (but he's drunk). Who else am I not thinking of?
I just think it's a little noticable that so few ladies have shown up thus far.
Also, building off Dr. Hurt's "Hellboy" idea: I'd love to see other pantheons involved. I don't think DC should limit WW to just Greek mythology; that's a mistake, imo.