"Captain America" May Travel Back To WW2 After "The Avengers"

"Captain America: The First Avenger" writers, Stephen McFeely and Christopher Markus have said that after 2012's "The Avengers", Captain America may end up going back to WW2 for the sequel to his film. Now, the guys are penning the sequels script right now, but they have hundreds of ideas for the sequel.
They said that Shane Black will be the first director to direct the first post-Avengers film. That being "Iron Man III". They also wanna see how he does with that first before jumping ahead with making their sequel. This means that we may have to wait until possibly 2013 before we see a "Captain America" sequel.