When you combine harmonious and melodic elements - especially orchestral - with elements from sound design trailer music you get a rough idea of how our third genre, hybrid trailer music, would sound like.
This genre takes all the hard-hitting elements (hits, impacts, big percussion, whooshes, sub falls, etc) from the sound design trailer music genre, and combines them with epic and dramatic harmonies and melodies performed by an orchestra or other instruments of your choice.
Here are a few audio examples:
Epic North Music (Really Slow Motion Music) - Exosuit
Colossal Trailer Music - Octane
Really Slow Motion Music - Faux Power
Phantom Power Music - Overpowered