The next series?

Now that I've finally finished my excessively long series on the cosmological argument, and I'm also writing a cap to my mini-series on causality, I was thinking of whether I should start any new series.  Here are a few possibilities:

1. The ontological argument: This would be along the same lines of the cosmological argument, in that I'd meander through a bunch of pointless quibbles.  I've already written a lot about the ontological argument, which shows that I have stuff to say about it.  But I'll probably just end up saying a lot of stuff I've already said.

2. Some other apologetics argument?  Fine-tuning?  Pascale's Wager?  I'm not sure I would have enough to say about these to fill a series.

3. I could read Mere Christianity (which I've never read) and talk about how terrible it is.  Or maybe some other book!

4. I could reboot one of my really old series about basic physics.  I wrote about quantum mechanics and special relativity, and most of it wasn't very good.  My main goal back then was to explain stuff I had learned in courses, because that's fun.  If I were to reboot these, I'm not sure what my new goal would be.

5. I had a fantasy about what would happen if I suddenly gained a large atheist audience, and had to explain asexuality to them, or if I suddenly gained a large asexual audience and had to explain atheism to them.  What would I write?

Would any of these series sound interesting to you?  Is there anything else you'd like me to write about?