from mf.com
In the beginning of the trailer, passing across the screen, is a THETA class shuttle. It is accompanied by three fighters. These are brand new fighters for the Star Wars world.
From behind, these fighters look almost like TIE fighters. For half a second before they move past the camera (with the planet Coruscant close in the background) you can actually see they have longish fuselage. They look like Jedi starfighters with open wings, but unlike the Jedi starfighters, these fighters have two engines located vertically, not horizontally.
Also a word of note: "Blue-Eyed Yoda"... It's the reflection of Force Lightning. He's not blue.