Originally Posted by mkilban2
I could see them working for the big bad guy reluctantly then they realize that their on the wrong side of the fight or something and switch over to help defeat the big baddie. Doubt they'd stay as strictly villains the whole movie
I don't think they'll stay as villains either.
They'll probably switch sides by the 3rd act and help the Avengers overcome impossible odds... Then again, it's also possible their switch to the good side doesn't come until a follow-up movie.