Re: Who should be the villain in an Avengers sequel? (Poll)
i think it will be the 'Masters' and in my opinion it might consit of :
"Mandarin" (he is not dead according to some interview)
Abomination (somehow in CA:TWS or before he will be released)
The Leader (from the Incredible Hulk)
Zemo (Since he is rumored on CA:TWS) or any other villian coming in CA.
The Extremis soldiers (I don't think all of them died)
Justin Hammer (if he builds an armor suit or joins AIM)
I just don't know how GotG will fit into A2, if any. Maybe their real role is for A3 and whatever happens on GotG will be better understand come phase 3.