oVirt isn't exactly a trivial piece of software.
Actually I'd say it's not even a piece of software, as the integration of the
various companies whose fully independent products now make up oVirt, never fully
happened.
oVirt is Redhat Linux, Qumranet (KVM+Spice), Ansible (Ansible), GlusterFS (Z Research),
VDO (Permabit), and I don't know how many others, and you currently need knowledge,
perhaps even control over all of them to deliver the product.
Oracle has somewhat duplicated RHEL and oVirt, but even for those two components I
don't see how they could continue them without the upstream project.
RHEL isn't going away very soon, but you've all watched the CentOS battle and how
Redhat is turning [IBM] blue.
VDO has been upstreamed, the fate of Gluster isn't publicly known but without a
commercial product earning some revenue, it just can't survive for long.
And all this is in a niche that even with Broadcom raising the stakes high enough to cause
a stampede, is going up in clouds, unless the political fragmentation of the IT space
becomes much, much stronger.
oVirt needs a strong sponsor, but anyone but IBM making big bucks from oVirt cannot
happen, because Redhat has both means and motivation to block that.
Of course, that's just me thinking aloud and I could be all wrong...