According to Latino Review, Marvel will be making a big movie announcement at Comic Con. Not only will they be releasing new "Thor", "Iron Man", and "Captain America" films as well as "Guardians of the Galaxy".

Who are the "Guardians"? Well, they are a team of superheroes from a future universe called "691".  The "Guardians" will meet up with the Avengers, who will help them fight aliens from their universe. Also, it should be noted that Thanos will be in the film also.

The film will be released in 2014 and will be a lead in film to the "Avengers 2" film.