Most of the New Vegas section ran over old information, however several new pieces have been filed in:

BOS has access to T-51b rusted and un-rusted power armor

BOS is in possession of Tri-Beam Laser Rifles

The war between NCR and BOS is over control of energy weapons

and it will not be seen until late in the game, however you will hear rumors about them

The rest of the TV spot covered God of war and DC universe.

To see the New Vegas Spot click on chapter 3 at the bottom, I will get a NV specific clip soon. Click[here] for GTTV New Vegas TV Spot