Many of you probably saw the recent press release or related news about
the future of Atomic Host + Container Linux.
https://www.redhat.com/en/about/press-releases/red-hat-unveils-roadmap-coreos-integration-red-hat-openshift
As press releases go, it had plenty of buzzwords but was also partly
ambiguous. So it is not a surprise that you might have additional questions.
While I don't have all (or any?) of the answers, the press release was
picked up by Hacker News and there has been good discussion going on in
the thread with members of CoreOS, Fedora, and Red Hat.
https://news.ycombinator.com/item?id=17027097
I'd encourage you to read through the thread and see if some (or all) of
your questions are addressed there.
Thanks!