This news really isn't going to blow your mind because it basically tell us what most of us already know. I think it's fairly obvious what characters will end up in the Justice League movie, but our friends at Latino-Review say that the five members of the team are...
Superman, Batman, Green Lantern, Wonder Woman and The Flash. Like I said this isn't earth shattering news, the Justice League wouldn't be the Justice League without these characters. The site goes on to say that Martian Manhunter, Aquaman, and Hawkman might also be included.
This actually contradicts a previous report from about a month ago, that gives us a breakdown of the characters that would be in the film, and the roles they play in the story. For example, the previous report says that Aquaman actually has a key role in the movie. Both sites that reported this news have a good reputation for getting these kinds of things right. It will be interesting to see how this all plays out, and what characters do actually end up in the film.
Justice League will be going up against The Avengers 2 in 2015. I'm excited for both movies, but I'm sure The Avengers is going to end up being the much better, more successful film.