You're working on or thinking about working on a Spelljammer mod? That sounds cool.
I would like to offer up #10: a proprietary world that is not a standard Advanced Dungeons & Dragons setting. Do we need a #11 for Ravenloft?
I'm working mostly in the Realms (#1) with modules set there reaching into #5, #6 and the Outer and Inner Planes.
I have one, that's way on the backburner, that is set in #2. All of the rest, which is the majority of projects falling under #9 or #10 - these are most of my backburner projects.
Let me be a little more concrete:
Mod 1- #1 & Outer Planes
Mod 2- #1 & Inner and Outer Planes
Mod 3- #1
Mod 4- #1
Mod 5- #1 & #6
Mod 6- #9
All the rest are backburner. Mod 6 is going to be fantasy, but a completely new world, with new creatures, new races, new spells, new classes and new items (not to mention the obvious, which will be all of the new art) It's still the 1e/2e hybrid that is DC. This is the setting I'm making for pen and paper and DC.
A little ambitious? Probably, but if I get it done...