Who thinks there's a good chance that the Puck, Heather and Shaman who died in Avengers #16 will turn out to have been skrulls?
The change could be made easily if the Skrulls encountered the Alphas on the Plodez space arc mission.
The other casualties could also be Skrulls, but reason would have to be given why Sasquatch was not impersonated...and, do we really need Mac, Maple Leaf and she-Puck back?