1. Ooh, y'know what, there will be NOW--a lot of the Back Issues stuff I have planned is just "whatever strikes me as a fun addition to the game," and that seems like a perfect thing to flesh out. (I also am working on an in-depth character creation system to bolt on, along the same lines.)
2. I have thought SO MUCH how to use these alongside one another, in a way that's more in-depth than "running both games in the same city" (which is also a perfect option). Something I'm thinking on a lot.