Hulk_Smash, is this just based on initial box art that you've seen? If so, we've seen some instances where the final figures have not been announced/included (early Joker Steamroller packaging didn't include Batgirl), so there is a chance the figures could change or we could see additional figures in the wave.
Also, I wonder if is still be a big UCS-style set that has yet to be announced. They are putting a lot of energy into promoting this game, and it feels like there is still some untapped potential there based on everything we've seen. While Lego errs on the side of "less is more", I'm hoping that we may see a Watchtower or Hall of Justice sometime next year. That may also be where we get a few more highly desirable figs (Shazam, Professor Zoom, Black Adam, Green Arrow, Black Canary, Red Tornado, some of the Lanterns, etc). Here's hoping.