Oracle is killing Solaris. At least HP has a recent precedent with licensing the rights to another OS (VMS) to a separate company to let its life continue.
My concern would be that as they look to carve off the less profitable areas of their enterprise divisions, that the HP/UX team (as a smaller subset of the overall quoted number of 5000) and in turn the HP/UX product as it stands at the moment, could potentially be marked to suffer the same projected fate as Solaris.
Agreed... although x86 port for Solaris from SPARC wasn't enough to keep Solaris alive and kicking, despite the huge advancements Sun had made with the kernel and filesystem etc.
https://en.wikipedia.org/wiki/OpenVMS
And I doubt that HP/UX was 5,000 people within HP.