It would be great if we could license just the virtual machines, not the entire host. There are lot of mixed environments where customers need to run several Windows Server VMs, but not all of them and not on Hyper-V. The minimum price can be licensing 16 cores, regardless of actual number of cores is less. Running just a few Windows Servers VMs in cluster environment and properly licensing them is way to expensive. This wan't push customers to cloud if that is the intention of present virtual machine licensing.