Accoriding to QEMU Mailing Lists they want to add KVM bits to QEMU itself, along with some gfx addons from both Xen and KVM, the upcoming QEMU 9.2 should be a lot faster then current one, but it will take some time to release also:
http://lists.gnu.org/archive/html/qe.../msg00253.html
More threads:
http://lists.gnu.org/archive/html/qemu-devel/
I also do not get the point why FreeBSD developers are so little interested in virtualization, like VirtualBox.
Someone even ported KVM to FreeBSD as a Summer of Code project, but its as usual, abandoned right now.
This is what I like about OpenSolaris, focusing on 64bit and virtualization.