So, it looks like this:
From an offhand comment Matt Dillon made, the first ‘release’ of Dragonfly is planned at least several months from now. (No definite date yet.) FreeBSD-5 should be entering a stable branch (5.3) around the same time, and the stable 2.6 Linux kernel should be appearing around mid-December, close to the same time as FreeBSD 5.2. KDE 3.2 should also be out in February. Gnome 2.6 is due in March.
So, early 2004 looks like it will have much to play with.