After having some time to think about this, I'd like to add some more thoughts. I haven't seen Gal Gadot act before, so I can't really comment on how much I like or dislike the news of her being cast as Wonder Woman, but I would like to add some thoughts about Wonder Woman's inclusion in the movie.
The characters of Lois, Perry, and Martha have been previously confirmed as making appearances in the film, but unless Wonder Woman doesn't play a big part, then I'm starting to think that Superman's supporting cast might make nothing more than just cameo appearances in this film. If this is meant to be a Justice League movie instead of a direct sequel to "Man of Steel," that doesn't bother me too much unless we never actually get a direct sequel to "Man of Steel." After all, Gwyneth Paltrow only had a cameo appearance in "The Avengers," but she still played a big role in "Iron Man 2" and "Iron Man 3," so I'm sure we'd see more of Lois, Perry, and Martha if "Man of Steel 2" ever gets made. However, if we don't actually get a proper sequel to "Man of Steel" at some point, I'll be really disappointed. The idea of a Justice League movie does really excite me, but I don't want it at the expense of Superman getting his own film series.
If this is going to be a Justice League film, then the writing will have to be very good in order for it to work since the general movie audience won't know all of the characters beforehand. Introducing them all at once will be tricky. It's doable, but it's going to be tricky. Taking the approach that Marvel took by introducing all of their characters before they made "The Avengers" would probably be easier.
