Moreana was "bubbly" on those whedon projects. Since then she's played the evil queen alien on V and now plays the cheating yet vulnerable housewife to returned tortured solider/terrorist on Homeland(with Damien Lewis). And when her hair is relaxed and straight, she very much fits the look(and height) requirements.
Blue eye'd wonder woman? I figured that was just a by product of the Lynda Carter white washed crap. Either way, contacts can go along way. I honestly decided on Moreana after I read issue 190, and wonder woman had a pixie hair cut.
I do see how you are casting by looks though. Even that fox suggestion(5'4) seems like a dark hair slim body type of deal. I personally can't do that. Like I said, I'm in a way casting for Xena. That presence but with a mediterranean twist. Some culture diversity would shine here in a way Avengers simply didn't(not even by simply changing Fury's race to add color). A Bellucci type would be ideal, But that's wishful thinking, I suppose I could change my line of thinking here.
Basically this is just a Lynda carter update. Actor et all.
If I must, I'd prefer a Tsianina Joelson(of Xena fame) who played an amazon no less.
and the armor would def need an update, something of this sort with a color change
Again, it's that Amazonian quality that seems to always get lost in the Americana iconography.
Megan Fox? Seriously this isn't a woman to sit at the table with the other strong minded men and put them in their place. I honestly can't get around this CW approach to WW.
Then again Captain America worked out, so what do I know.