Trent confirmed on nin.com that With Teeth will come out in north america as a CD / DVD-A dualdisc for those interested. The mix was done by Trent and James Brown.
He claims the mix is better than that of the downward spiral. I assume the album may have been conceived with a 5.1 notion in mind. I may pick it up to hear it in 5.1 as I was previously unsure if I would be buying the album.