I admit it looks impressive, but metamerism index of 78/75 really isnt much impressive. For what is good 25 bit depth when colors are "off" right from sensor? ICC profiling probably can help, but if you ever saw difference between color profiled 5DMK2 and 1DsMK3, you will know it cant save it.
In theory it could be best studio 35mm camera, in practise it will be still Sony A900. And most likely A99, cause Sony is using superior CFA on pretty much everything except very low end models.
Considering "improved" noise performance of 5DMK3, I doubt it will be much better in this deparment, but they can suprise as samples from 5DMK3 seemed quite promising and very "non-Canon" like. Unlike D800 studio ones where skin looks mostly bit wierd..