One of the first things online I saw after I woke up this morning was this article in the Times, brought to my attention by the incomparable Ms. Rachel DeMotts, who apparently recently received a python as a gift. It's unfortunate that the snake in a bag is beside the point, but there we are. Anyway, I'd heard about the new Jim Lee costume for Wonder Woman and didn't really take it seriously, since they try to re-dress superheroes every few years. This isn't even WW's first makeover. Not by a long shot. Superman and Batman have had a couple of different looks - Hulk and Spider-Man, too. Iron Man changes his whole suit every few years or so. Some of the redesigns kind of work, and they stick, like Batman having treads on the bottoms of his boots and Captain America having a belt of pouches for stuff, but for the most part, we gravitate toward the iconic images that represent the characters. If it works, it'll stick.
I wouldn't count on it. She looks like Dazzler. The jacket with rolled up sleeves is very 80s - the FF did this years ago, and so did the X-Men, and they don't stick around. I'm glad she's out of heels, and pants are good sometimes - even Robin has them these days. People will point out that they're skintight, but all the guys she hangs with wear tights. It's what they do, except for the one guy, and he's from fucking Mars. The thing is, WW didn't need a new costume, much less a new backstory. For going on 70 years, Wonder Woman's been proving she can kick ass and take names, hold her own with Superman and kick Batman's ass, and she did it all in a USA swimsuit. Sometimes it was bicycle shorts, depending on the artist. She has one of the best origin stories ever, having been created by one of the first respected and successful practitioners of open marriage, early feminist, and one of the inventors of the lie detector, Dr. William Moulton Marston.
Like a lot of characters, there are good Wonder Woman stories and bad ones, but I challenge you see New Frontier or read Trinity and tell me her outfit matters fuck all. This buzz is happening because sales are important, and because, apparently, we're still sexist enough to care. When sales get sloppy, characters get re-booted. Superman got it in '86, and it worked. Others don't work so well. The attitude of this is a little skewed, too - Mike Straczynski even commenting "What woman wears the same outfit for more than 60 years?" A great writer, for such a douche.
Ultimately, this will not matter, and I suspect it won't stick around long, either. It'll give them a great excuse to re-introduce her old look in a few months, though. With variant covers.