7 of 7Image
I think of Korora as being derived from Fedora in much the same way that Linux Mint is derived from Ubuntu. They start from a very good distribution, and then they add all the things that I would put in myself, and they end up with a great distribution. The Beta release is currently available, but as far as I know no final release date has been set yet. At the same time, there has been a name change (dropping the second "a" from Kororaa) and a web page change (to www.kororaproject.com), so make sure you look in the right place for this one.
Mageia 3 KDE
Mageia 3 has had a couple of significant bumps in the road during its development, resulting in a bit of a delay in the final release and at least one extra Beta release so far. However, it's looking good now. Beta 3 was released on Sunday 10 March, and I have already installed it on several systems with excellent results.