The KDE/miniKDE Edition is ready. In fact you can already download it. It will be officially released tomorrow.
With a Main, a Light, an XFCE and a KDE Edition, development on Cassandra should stop and the focus should go on Celena in the days to come.
Maty talked about the possibility of a Fluxbox Community Edition but it’s not clear whether it will come in time for Cassandra or if it will be introduced after the release of Celena.