It is sad that we have to ask the question year after year because everything always looks the same. I wouldn't mind so much if player models, equipment, lighting and uniforms all look the same if great strides were made in improving on the field play. But it seems like that wasn't necessarily the case.
I'm sure these are NCAA 13, there's no reason to doubt it, but the game looks exactly the same and a significant number of the guys in these pictures are graduated or elsewhere. Add in the fact that we were told new uniforms were in the game and absolutely NONE are featured on teams that should have them and this becomes just a weird situation.
EA has done a miserable jump with the media they've released this year. At least last year they did a good job of cherry picking the good things about the game. This year, most of the videos and pictures have been a let down. Gameplay videos show glitches or just terrible game play (the option video) and most of the pictures just draw attention to the horrible player models, lack of equipment, etc.
Shrug. We'll see soon enough.