The trailer includes the memorable "I have an army"..."We have a Hulk" exchange between Loki & Tony Stark, along with a mili-second of new clips with Banner's rage face & Hulk's roar. There's also snippets with Loki whipping someone across the face, and Nick Fury with Hawkeye gazing at something out of the ordinary. And according to Russian translators, Black Widow is saying,"We weren’t trained for this," to Hawkeye.
Translation by the wonderful grotesque_xxx
Loki : You were made to be ruled. In the end it will be every man for himself.
A.Coulson : What do we do ?
N.Fury : We get ready.
Fury : There was an idea..to bring together a group of remarkable people.
BW : You have to join us.
B.Banner : And if i say no ?
BW: Then i will convince you.
IM : Let's see who we got...We have some assasins , a man with breakting anger problems , a half God , a super soldier and me.
Loki : I have an army.
IM : And we have a Hulk.
Nick : Gentelman...what are you prepared to do ?
IM : No offence , but i don't play well with others.
CA : Big man in a suit of armour. Take that away , what are you ?
IM : Genius , billionaire , playboy , philanthropist.
T : haha
BW : We weren't trained for this.
T : You have no idea who you're dealing with.
IM : if we can't protect the Earth , ypu can be damm sure we'll avenge it.
IM : Dr. Banner! Your work is unparalleled. And I'm a huge fan of how you lose control and turn into an enormous green rage monster
B.Banner : Thanks.