WONDER WOMAN could be a franchise. It has immense potential. But it's just not that simple to make a good Wonder Woman movie. It's not that simple to make ANY good superhero movie, and those of you who want to pretend otherwise are being incredibly unrealistic.
I don't think it's all about the TV show coloring people's perceptions of Wonder Woman, and if it was, so what? The TV show elements have bled into the comics over the years. I think it's simply that WONDER WOMAN is a sizeable risk for a studio, like anything else. A risk, when there are less risky options. Yes, she's a known character, but she's not THAT popular. She's essentially a female Superman to the general public, and what did we see with SUPERMAN RETURNS? That even HE's not that popular with the general public.
It may also well be that right now, no one wants to make this film terribly. WATCHMEN didn't happen until Zach Snyder was willing to take it on. BATMAN BEGINS and THE DARK KNIGHT didn't happen until Chris Nolan came aboard. Pitof made CATWOMAN because literally no one else wanted to. GREEN LANTERN and JONAH HEX are happening because there's passion behind it. You can point to almost ANY superhero movie, and DEFINITELY any good superhero movie...and see that it takes real passion for the comic book character to get a superhero movie made, let alone a good one.
At this point, does anyone see anyone, and I mean anyone, clamoring to be allowed to produce or direct WONDER WOMAN? The only people who were clamoring to write it wrote what was a mostly terrible script. I suspect WB hasn't moved forward because no one's given them anything GOOD, and no one feasible has showed a particular amount of passion over making this movie.
I know Joss Whedon was involved...I also know nothing I heard him say indicated to me that he "got it" any more than anyone else ever would.
That said, WB doesn't "owe" you anything, so stop acting like it. WB can't just make nothing but superhero film after superhero film, they have other genres and other projects they must make as well. Even if you just consider superheroes, they've got Batman, Superman, Wonder Woman, Green Lantern and Flash to worry about realistically, and probably Justice League, too. Use your brains, people. If a studio drops $200 million on a GREEN LANTERN film, they probably aren't going to want to risk another $150 million on WONDER WOMAN in the same timeframe, especially when they're going to have a $170 million third Batman film to bankroll soon enough, as well as a potential Superman relaunch that will also cost into the hundreds of millions.
In terms of "But it's got so potential", yes, it does, but how easy is that potential to translate into a cohesive franchise?
I see a lot of *****ing, and I see a lot of people who think they can throw out basic concepts like "But it has her being made out of clay", "Island of Amazons", "cool villains", etc, and then wonder why WB won't rush to make the movie. I can tell you how those concepts would work in a serious film...but that doesn't mean a major studio would MAKE that film. I have yet to hear ANY of you pitch a viable and specific concept for Wonder Woman in this thread.
I would bet, however that if WATCHMEN is successful, and that if Silk Spectre is liked by audiences, you will probably see a WONDER WOMAN film tossed around, and then go into some kind of production within the next few years. And yes, THOR is something to keep an eye on as well. So is GREEN LANTERN.
This "it takes a long time to make a movie" thing is just the nature of superhero franchises, people. It's the nature of a LOT of large franchises. Spider-Man, Daredevil, X-Men, Hulk, Iron Man, The Punisher, Ghost Rider, Batman, Superman, V For Vendetta, Watchmen and concepts like Thor, Captain America and Luke Cage...all these concepts took years and years of the production process to bring to the point where they were even remotely viable film franchises/films. There are some concepts like Deathlok, Iron Fist that just languish and languish in Development Hell despite scripts being written, directors and actors being interested, etc. There's even a new The Phantom project that's been in the works for something like six or seven years now.
Patience is a virtue.