In the eternal words of Douglas Adams: DON'T PANIC! I want to draw a few comparisons to other very successful superhero films and explain why we don't have anything to worry about YET with [Batman v. Superman: Dawn of Justice](movie:711870).
1. X-Men - The first X-Men film will go down in history as the first major superhero team film. Brian Singer did a fantastic job introducing a whole new team of superheros complete with flaws, and he did it without a single back story. How an audience member could possibly be expected to follow a hero's story from their childhood without being guided like a blind man through a labyrinth is beyond me. But I digress. The point is: There was a team of good guys and a team of bad guys, and somehow Mr. Singer managed to do what some are calling impossible and create a lasting franchise for a lot of characters. Every character had their time in the spotlight and developed in some way.
2. The Avengers - This probably should go without saying, but when did that ever stop anyone? The Avengers and all of the other solo outings of our favorite Marvel characters goes to show how the complex universe can work. It is up to DC and WB to figure out the finer details, but it is not beyond the scope of reality.
3. X-Men: Days of Future Past - I want to talk about Quicksilver. He was in DOFP for about 10 minutes, and it was fantastic. He certainly was not overlooked or overshadowed, and he also did not overshadow the main story or characters. He was everything the story needed him to be, and he left the audience begging for more. If you ask me, that's perfect. That may very well be how Aquaman, Cyborg, and Wonder Woman are utilized in BvS.
4. Watchmen - Love or hate this movie, you can't deny that it develops the characters well and has some sweet action. There are a host of new characters never before seen on the big screen, and they all have incredible personalities, stories, and flaws. You may not care for the naked blue guy or the twist at the end, but you have to admit that it is a well balanced film. And as an added bonus... it is directed by Zack Snyder.
Don't hate this film yet. That's all I'm saying. There are plenty of things that can go wrong for a film to not work, but we haven't even seen a trailer yet (unless you count the pirated blurry mess from Comic Con. If it ends up being a steamy pile of fail then let's all hate it together. But until then I'm rooting for it. And Batman. I'm rooting for Batman.