Thanks for the links! I wasn't aware of that information regarding Roger Stern being in the dark about the Alpha Flight plans. I know Walt Simonson didn't care for Marrina and that's why he killed her off. I guess he wasn't that fond of Namor either, as that was the impetus for him leaving the Avengers finally.
I need to check the dates, as I thought they separated Namor from Atlantis so they could put him on the Avengers.