Hmmm. It's hard to game toward a theme, from the GM's end, in AW. I've tried it and it's never really worked out. I'd get to tied to my plans, not enough toward the PCs.
That said, I think you're on, but it's... organic. So front /=/ premise and threat/=/ theme, but later, after, you might see theme and meaning.
I don't know.