in general, UCS DVS is based on UCS 2.4 and will only be maintained till 31.12.2013.
So no further features are planned here.
Based on our experience with UCS Desktop Virtualization Services we are currently working with partners to integrate solutions for desktop virtualization with UCS.
Of course you are able to use virtualization besides DVS techniques with current UCS versions -> UVMM.
There are plans regarding NVIDIA’s Grid support for KVM -> NVIDIA Techblog
I am also aware of several ways to pass-through physical graphics crads with KVM and/or XEN:
There is no integrated feature for this - but using virsh, every command should be useable within own (automated) scripts.