According to somewhere on the internet there is going to be HDR in the game, along with DX11 support. But I really have to wonder, what is the point in DX11 when the game just looks horrid, it seems Treyarch have some obsession with taking what the game should look like, over sharpening and making everything look really harsh and thinking, bingo, that's how real life works.
Another thing I find they enjoy doing is making all the colours a dingy dark mess, it just looks horrid compared to any IW game, although IW aren't perfect I much prefer their games to any Treyarch make, especially when the likes of BO2 wouldn't run well on my old Q6600