They showed concept art for Guadrians of the Galaxy and the roster is: Star-Lord, Draxx the Destroyer, Groot, Rocket Raccoon & Gamorra.
Test screen of the AntMan film.
The costume looks a lot like the IRREDEEMABLE ANT-MAN costume
The face is completely covered, so we don't know who the actor is
It's a black suit with red highlights
The scene is a hallway with two guardians (maybe shield agents?) guarding a door at the end
on the opposite end of the hallway is a vent and, at it, stands Ant-Man at only a few inches high
He leaps down and we see him running down the massive hallway
Suddenly there's a flash and he's full sized, charging the guards.
He leaps and flashes again. He punches one at his tiny size and one of the guy's teeth goes flying out of his mouth as he crashed into a panel.
Ant-Man slides down the tie of the other man and returns to full size, flipping him over
He gets in the door, apparently an elevator, at full size and, with another flash, is gone
The title comes up, just plain ANT-MAN