Lucasfilm released the first teaser trailer for their first Star Wars Anthology film called Star Wars: Rogue One. This movie is set between Episode 3 and 4, and is about the team that steals the plans for the Deathstar. Here is the teaser trailer:
They did an excellent job a the sets of this movie to make them look like the sets from Episode 4. Star Wars: Rogue One comes to theaters on December 16, 2016.