The stuff from the devel list discussion is still all true, really. Ultimately all that’s been “approved” is that there will be a thing called Fedora Hummingbird (exact shape TBD). It doesn’t get to be release-blocking or an Edition or anything like that without going through the usual processes. Right now it has no more significant status than many of the other dozens of “Fedora somethings” listed by @augenauf above.
The idea here is genuinely to try and build a thing that people will find useful/valuable. It’s not just openwashing for a “RH project”. As per my other post, RH could easily do that itself if it wanted to - RH is behind plenty of upstreams that are entirely independent of Fedora already, e.g. OpenShift and Foreman. From inside RH it can be seen as easier to do that than go through Fedora processes.