"Trailer debut" refers to the first time a trailer (a short video promoting a movie, TV show, or video game) is publicly released online or shown in theaters. Full definition
The title's first trailer debuted there and if it's going to have any kind of impact it will need to show up during this event. (heavy.com)
Two months later, the official trailer debut brought in more than 200 million views. (variety.com)
If you want to see more footage, go back and watch the teaser trailer or wait until the next full - length trailer debuts - hopefully soon. (firstshowing.net)