It is, it's going to be one of the downloadable costumes.

That's just the New 52 costume. I just looks darker.

Oops, I read Batman Beyond, my bad.

Are you sure? His new 52 suit is a really really light grey(a bit of a mess up if you ask me,but off topic) and there's just something about this suit that doesn't look like the new 52 suit to me.Maybe i'm just not seeing something right.

I'm sure. The belt is the same, the pattern on his shoulders is the same, the pattern on his knee guards is the same, and I'm pretty sure his mask is the same.

I don't see that horizontal line on the forehead of the cowl,i don't know,it just looks that way to me,also,i haven't got a good look at n52 suit,i've seen it 2-4 times.but that's it.

I just noticed it myself as well hope it becomes available whatever suit it is and the bane knightfall one as well.

I just watched the credits myself. I got the collector's edition of the game with the New 52 skins, its definitely the new 52 costume. It just looks darker because of the lighting. It's just rendered for a more cinematic look. Belt, kneecaps and pasterns are all the same. Also there are these lines that run from the edges of the wings on the chest logo, and run over his shoulder. Kind of reminiscent of stretch marks.

Definitely his best suit in the game IMO.
[edit]: here are some pics I took with my phone, to try and clear things up. Sorry for the bad glare, there was a window directly behind me.

New 5 from the archieves:


Credit:

I see it now.Is it his New52 JL look?Because his solo series suit is more thread less armor(just gauntlets and boots i think).It does look pretty good.