Help me analyse every scene of the Godzilla trailer!

I think Godzillafansince1992 is right. 

Am I the only one who thinks Wantanabe's character is in a very primitive-looking Hazmat suit? I think he'll play a young (20-25) Serizawa who is aware of everything (Godzilla, MUTO(orginization and monsters in 1954))etc. They'll do some Inception makeup, make him look 80-90 during present day and he watches as this destruction ensues. Or he could be a modern day Serizawa. I remember them saying they had specific filters on the 1954 shots and there were none that were obvious in the trailer. 

Working on my front page write-up now folks, I'll be using a lot of your theories so watch for your mention in the article! Thanks for everyone who contributed to this topic.

But -- what is that in the back of the train - after it's been ripped off? You can see the metal of the train peeled back and something dark grey in the space where the back of the train was. 

After watching the trailer 30+ times I can say for shure that the creature attacking the train has the ability to unhinge it's jaws and seperate them into four seperate piece's like an elite from the Halo games. But it seems that when it closes it's mouth it looks like a normal(I use the term loosly)mouth.

hey chris i mght be able to help.

well the airjump is for when godzilla made landfall in america and then there is an accident at the muto factory and bryans cranston charecter watches his wife and other co-workers being eaten because he can do is watch in tears as they all die a horrific death. the one with ken wantnnbe is the mutos escaping and then all hell breaks loose and they decide to nuke the monsters and out of the dust comes OUT THE KING!!!!!!!!!

hey chris i mght be able to help.

well the airjump is for when godzilla made landfall in america and then there is an accident at the muto factory and bryans cranston charecter watches his wife and other co-workers being eaten because he can do is watch in tears as they all die a horrific death. the one with ken wantnnbe is the mutos escaping and then all hell breaks loose and they decide to nuke the monsters and out of the dust comes OUT THE KING!!!!!!!!!

hey chris i mght be able to help.

well the airjump is for when godzilla made landfall in america and then there is an accident at the muto factory and bryans cranston charecter watches his wife and other co-workers being eaten because he can do is watch in tears as they all die a horrific death. the one with ken wantnnbe is the mutos escaping and then all hell breaks loose and they decide to nuke the monsters and out of the dust comes OUT THE KING!!!!!!!!!

@GTBetta35: That's a very intriguing theory! I hope it actually plays out that way, that Serizawa as a young man saw all this coming, was either in on, or knew about M.U.T.O, and is now watching all of this happen.

I was wondering how they would work that character, and the 1954 era, into the story; this sounds like a great way to do it...