EW has a write up of the scenes shown:
In new footage from the movie which received a standing ovation we saw nearly the full casino scene from the film. TChalla, Okoye (The Walking Deads Danai Gurira), and Nakia (Lupita Nyongo) are dressed to the nines, entering a glamorous secret club in South Korea, in pursuit of the Vibranium poacher Ulysses Klaue (Andy Serkis), who was last scene in the Marvel universe getting his arm cut off in Avengers: Age of Ultron. Now he wears a plastic prosthetic, and hes there to meet the CIA agent Everett K. Ross (Martin Freeman). There will be an exchange a tiny scrap of Vibranium, in exchange for a suitcase full of diamonds.
The Wakanda operatives are still low-key, tracking their prey. Meanwhile, Klaue prepares for the handoff with his American contact, who seems unhappy to be bargaining with the unsavory arms dealer. Nyongos Nakia a war dog undercover operative, who is like James Bond and a Bond girl wrapped up in one, is ready to fight. Okoye tells her to stand down. They dont want a shoot-out, she says.
But Nakia doesnt listen. She draws down. Klaus gets spooked, and Okoye ends up pulling out a tiny piece of Vibranium herself a purse-sized implement that extends to a full-sized spear. Three of Klaues men are on the ground before long, victims of a brutal beatdown. Klaus opens fire on the CIA agent, and diamonds burst from the silver case. Everyones operation has just gone south.
As Klaus retreats from the brawl, TChalla leaps from the ground floor to the balcony in a single powerful jump. Hes not wearing his his suit, and Klaus has his gun out, point blank range. He shoots, but hes out of ammunition. So he raises his hands his real one, and the fake.
You look just like your father, he tells the young Wakandan king. Then the prosthetic opens up. A cannon with a blue, glowing core extends, and Black Panther dodges a lethal blast at the last moment. From there, we see a street chase. Klaue speeds away with his surviving entourage in a caravan of SUVs while TChalla chases on foot.
As TChalla runs, his evening wear disintegrates and his Vibranium-woven Black Panther suit spreads across his body. He leaps upon Klauss car, ripping one of the front wheels off with his claws. Okoye hurls her spear through the air with such force, it embeds in the street in front of another SUV and causes the vehicle to flip end over end when it strikes the post.
From there, the scene became a more traditional trailer, revealing a battle at Warrior Falls between TChalla and mountain tribe ruler MBaku (Winston Duke). Jordans Erik Killmonger confronts TChalla in his throne room. Must feel good. Sitting here comfortable, he tells TChalla. The meeting goes badly. In a shot that was previously released, Killmonger pulls out his own blades on a landing pad to confront members of the all-female Dora Milaje. But this time, we see his clothing dissolve just as TChallas did. Killmonger has his own version of the Black Panther suit this one golden.
The two men become locked in battle, and this time theres no telling who will be left standing.