In response to: http://www.comicvine.com/news/what-are-the-ingredients-for-a-good-wonder-woman-television-series/145927/
If we're going to argue that her origin is hard to relate to (I don't think it is any more than being the last survivor of a dead planet, but okay), then Wonder Woman, while being the protagonist, maybe shouldn't be the main viewpoint character. A human character with a human background would probably serve better to have the story focus on, possibly a Cassie Sandsmark type who has no powers and is (as far as she knows) human. Make her interesting, use her as a foil for Diana and compare/contrast their views on being a strong woman and how they handle associated scenarios. As examples, I'm thinking of Angel or Buffy as shows. Angel and Buffy are outside normal experience, but you have tough, capable supporting characters who provide needed support and focus for those protagonists. As for explaining her origin, it could be revealed slowly and subtly, in pieces. Add mystery. Maybe have her say it to a character and pose it as a joke or a lie, but it's eventually revealed to be true. Maybe she herself doesn't know the reality of it, a twist used in the New 52 series. A mystery like that would keep things very interesting.
As for costume design, I'd go with something that echoes the comics but looks practical. Even more practical than Green Arrow in Arrow, if possible. Rahzahh's design is great, though I would go with long hair, which seems more iconic. Make it look durable, the exact opposite of Palicki's suit.
Tone? I would like something like Arrow but with more mystery and real humor. I'm thinking Buffy again. Even something like Lost, which was suspenseful, highly mysterious, exotic, but laced with emotion and humor. Create a team of supporting characters than make sense and use them to reflect all of the aspects of Diana's character. Keep it present day for maximum believability, possibly the very moment she leaves Paradise Island. A love story could make sense but should not be the focus of the overarching story; I can see a triangle with Steve Trevor (human) and a fellow super-powered person being interesting.
Budget. This is the real problem. Diana may need to start out de-powered, or at least not be able to fly. I don't think a flying hero will work on TV just yet, for budgetary and believablilty reasons. Strength, bracelets, lasso, maybe some other abilities created just for television. Maybe she could earn a piece of her suit every season, much like Clark discovering a new power every season. Her classic cast of Hippolyta/Ares/Artemis, etc. should be included, but maybe appear as their New 52 versions: human-like in appearance and behavior, yet exotic and strange.
It can be done. It just needs a unique take on being a superhero, which the Kelley pilot didn't have at all.