Yes. They said that it will be Red Robin, Wonder Girl, Bunker, Beast Boy, and Raven. And that other members will gradually be added. Pfeifer did allude to a lack of a Superman and Flash family character in an interview and made a comment that made it seem like someone would be added soon but that it would not be what people expected. Which is why I'm guessing Wally joins as the resident speedster instead of Bart.