[libvirt] more options for virt-manager

I noticed that the command line qemu and qemu-kvm offer a number of options such as using vmware display and addition sound card emulation as compared to that when using virt-manager. Are there any plans to add these as options to virt-manager? As a more general question, is there some document which describes the plans, roadmaps, etc. for Fedora Virtualization (or should I say Linux Virtualization since it does apply to other distributions as well)? I pick up tid-bits in various messages and bug reports such as libvirt supporting vmware and "pool storage" providing some improvements but I do not have an overall picture as to what is planned. While developers may do some things sooner rather than later because they are easy to do, we users may have some preferences as to what features/capabilities are more important to us than others. Gene