User blog comment:Mbarriosfuenmayor/Possible Avengers Line-Ups/@comment-4651179-20120902211239

Scott Campbell is doing a set of three interconecting covers (All-New X-Men/Uncanny Avengers/Avengers), and the heroes seen in the last team cover were:

Iron Man, Hulk, Spider-Man, Black Widow and Hawkeye, and they are supposed to be 18 members.