American Dream, She-Hulk, Captain Marvel, Black Widow, Valkyrie.
This would be a very cool spin off.
Premise: Black Widow and Captain America return to Earth (post ish 640 of Cap and Black Widow) and the next morning Cap has disappeared. In his place is American Dream wondering exactly how she got here. The two team up and head to the Avengers Mansion where they find She-Hulk, Valkyrie, and Captain Marvel trying to figure out where all the male superheros have gone.
Plot: Over a 12 issue arc the Avengers track down the person responsible and make plans to rescue the superheros from the Other Zone (or OZ for short). Yes, we find the Avengers tripping through a seriously messed up OZ as a back drop to finding the guys. Again, for continuity, there is the Wicked Wizard of the West, and the Great and Terrible Witch of OZ is there to assist.......