I’ve been asked, and I’ve seen others are asking, about the future of Hyper-V Server and if there will be a Hyper-V Server 8. I can confirm that, yes, there will be. In fact you can get the beta here.
Hyper-V Server 8 is the free Hyper-V product, that includes all the functionality of Hyper-V and Failover Clustering. The market for it is actually very small. If you have 4 or more Windows VMs, and if you license them correctly and legally, it’s actually cheaper to license the host (and avail of the virtualisation rights) to license the VMs (BTW, the license is always assigned to the host even if you think you licensed a VM, and Windows volume licenses can only move once every 90 days).
However, a small percentage benefit from Hyper-V Server, including those doing VDI or Linux virtualisation.