First: Man of Steel may be the launch of a new Justice League universe. The creators know this, so there are some rumors that there will be certain cameos in the movie. We are already seeing this in the tie-in materials. The Man of Steel prequel comic name-dropped Thanagar and featured Kara Zor-El.
The third Man of Steel trailer shows us Lexcorp at the 2:18 mark. Don't be surprised if we hear about or see Wayne Enterprises.
Now, most importantly, all of the things happening in Man of Steel indicate a high level of extraterrestrial activity on Earth that could attract the attention of the Guardians of the Universe. At 0:44 in this trailer, we see a flash of emerald energy headed to Earth.
We don't know when this sequence takes place or even what the green light is, but it could be a post-credits scene featuring--Green Lantern!
That would be amazing in my opinion! What may be even more amazing is that the U.S. military is featured heavily in Man of Steel as indicated by this TV spot.
Could the Green Lantern John Stewart, a former marine, be one of the soldiers in the movie? ;-D
I hope so! And the signs are pointing that way.
MAN OF STEEL DC UNIVERSE – With the Justice League movie having difficulties getting off the ground, people continue to speculate about the Man of Steel being a launch pad for more characters in the DC Universe. Christopher Nolan’s Batman trilogy was self-contained and theGreen Lantern movie was a disaster (helicopter on a hot wheel race track anyone?), is it is up to the man with the “S” on his chest. In an interview with Entertainment Weekly, producer Chris Roven opened up about introducing characters:
“[Man of Steel's] setting the tone for what the movies are going to be like going forward. In that, Man of Steel is definitely a first step. What Zack [Snyder] and Chris [Nolan] have done with [Man of Steel] is allow you to really introduce other characters into the same world.”
The head of Warner Bros. Jeff Robinov agreed with this statement:
“It’s setting the tone for what the movies are going to be like going forward. In that, it’s definitely a first step. I think you’ll see that, going forward, anything can live in this world… [Nolan's] Batman was deliberately and smartly positioned as a stand-alone. “The world they lived in was very isolated without any knowledge of any other superheroes. What Zack and Chris have done with this film is allow you to really introduce other characters into the same world.”
That next step should be revealed soon. “We’ll announce something in the next several weeks that will hopefully position the DC characters and the movies we’re going to be making,” Robinov said.
Man of Steel screenwriter David Goyer wants people to keep an eye out for connections:
“I would love to tell you yes or no [on Man of Steel leading to a shared universe], but I think it’s going to be more exciting for people to keep a beady eye out and find what they can find.”