There's still a lot of legacy HPUX servers out there, mostly running SAP+Oracle combo, but they all slowly get phased out in favour of Linux or Windows boxes. Still, some of them will likely remain chugging along for years to come, because their performance will simply be sufficient for the task at hand.
I can well imagining HP milking existing HP-UX customers for all they're worth, but I'm finding it hard to justify spending much $$$ to develop it. So I would expect HPE to provide security patches and nothing more.
