The phrase "new trailer" refers to a recently released preview or advertisement for a movie, TV show, or video game that gives a glimpse of what to expect from it. Full definition
We also had a brand new trailer for E3, giving you a sneak peek at the story of the game. (blog.eu.playstation.com)
We'll have to wait and see, but both developers and publishers have released new trailers showcasing different parts of their games. (thesixthaxis.com)
Mighty No. 9 has a brand new trailer showing off the range of game modes that will be available to players when the game releases next year. (stevivor.com)