havard
Adventurer
I'm looking forward to Mystara also, though, in truth, I can imagine that it will be quite the pain in the rear. As I recall, many of the early adventures were questionable as to whether they were designed for Mystara or Greyhawk.
Ideally, I would include these modules on both settings lists. However we are just talking about a few modules. Even in the B series, most of the modules are explicitly placed in the Known World.
-Havard