Hi,
I am just a user (not a team member) so I cannot tell you for sure, but I think support for new platforms basically is “it’s done when it’s done”.
I think the new Python version is probably what has pushed the release back (plus maybe a bug in subscription-manager that was mentioned here).
You could try running katello-agent tools from source on a testnode and check for/report remaining bugs. Since f29 subscription-manager seems to be broken, that might not be usefull until that bug is fixed upstream.
Regards