Kevin Kofler wrote:
- Which Fedora release becomes the base for the next RH/CentOS release.
This is a decision made by Red Hat behind closed doors and only when it's time for it, not in advance. So we cannot know.
Does that mean that they think their customers like surprises?
- How I transition my userbase from Fedora support to CentOS support at EOL
This is just not possible, as explained many times in this thread. See e.g.: https://www.redhat.com/archives/fedora-devel-list/2008-October/msg01047.html
So I think it is a fair expectation to be able to "follow" a Fedora release into its RH/CentOS stabilisation, knowing that the process exists and that the stable branches are published. It definitely works for other distros. Perhaps it's possible with Fedora -- hints and pointers welcome.
It's neither a fair expectation nor possible.
Then no one should be surprised at the migration to Ubuntu and other distributions that have a more orderly transition from version to version.