I'll be skipping the trailer since I'm on a blackout but I thought some people would be interested and I thought the teaser image was cool. It's going to be a CG trailer.
Teaser Here:
https://www.youtube.com/watch?v=Esung4vdTCI
Trailer Aired During Walking Dead Here:
http://www.youtube.com/watch?v=heEqAwQ5phI
Extended Trailer:
http://www.youtube.com/watch?v=C4II7wSSXp0