EO: Joss Whedon has been talking about two new possible Avengers for Avengers 2, namely the brother-sister duo Scarlet Witch and Quicksilver (who Fox has snuck into X-Men: Days Of Future Past), but he hasn't said all that much about the villain. Credit sting aficionados presume it will be Thanos, and that seems to be a reasonably safe bet, but only Joss really knows...
Thanos will probably be in Avengers 3.
As a side note, why is Whedon just saying the villain is "he". Aren't the villains Quicksilver and Scarlet With? Or is Quicksilver like the main villain and Scarlet is just his sidekick? I've been wondering about that since he's referred to the villain quite a bit as just a "he".
If they have actually decided to go with Quicksilver and Scarlet Witch, it seems like they are going with lesser villains, compared to Loki.
Also, Thanos should be in the Avengers, and if they really need a character to fight in any of the upcoming films, Ultron would be the perfect fit...literally.
I just want anyone new.