Board Thread:Questions and Answers/@comment-16461120-20160405223613/@comment-24279857-20160406000950

I honestly believe he in an Avenger. He and Wanda "geared up" and fought with then against Ultron. The MCU wiki lists him as a member (if that means anything). In all that, he technically was a member just like Wanda when he left to go to Sokovia. And that is that.