All of the characters in the posters are pretty much in line with their standard comic books garb and they could have easily gone with some more cleavage heavy versions of Wonder Woman's past costumes too. If they'd, say, gone the Mystique route and made her costume into body paint or something like that, I'd be on board with balking at the needlessly sexy outfit, but this is how she's looked for a long time, and of all the characters being introduced full tilt, she's the one I'm holding out the most hope for. I'm really not caring at the moment.
That aside, Cyborg's CG looks terrible in this trailer, I like Jason Momoa but Auqaman bores me in this trailer, I've tried to like Flash's costume but I just can't, it is super ugly and weird, and last but not least, I've been burned by Snyder trailers too much to feel any hype for this at all. The man knows how to make a nice looking shot, but more often than not he seems to have no idea how to make a good story or make good characters. I expect all the trailers for this will look fantastic, but I expect the movie to be all pop with no substance. This guy nailed exactly what I've been feeling about BvS and I expect the same from Justice League unfortunately: