Hmmmm... do I smell a CL manga? The one thing that failed pretty much every time we tried it?
Actually, no. Making this into something similar to our writing projects is a good idea. Because before we tried to make some single big-ass thing, many people joined, noone really did anything and we had no work distribution. But making a theme and making single artists or writer/artists teams work on it on 4-panel format? Yeah, that actually can work.
The one downside I see here is that people who can't draw can't join, but well, that's a drawing project... Yes, I know, writer can join with an artist, but 4-panel format is easy enough, so you don't really need a writer even if you aren't that creative yourself, and writers would have to actively seek artists to join. An artist who would announce that he needs a writer would get swamped with proposals, I feel.
I'd say, you should test this on a few neutral themes, but if this would go well, you can try making 4-panels about something CL-related. Maybe we then finally get something resembling the goddam CL manga. Would be an achievement.