The full trailer has been released for Halo 4: Forward Unto Dawn, an upcoming series taking place before Halo 4.
Halo Wars 2: Announce Trailer
Blur Studio have created this CG teaser for the newly announced Halo Wars 2.
Halo: Nightfall - Official Trailer
The official trailer is out for the Halo: Nightfall series.
Halo Nightfall - First Trailer
The first trailer is out for the Halo Nightfall movie.