According to Zap 2 It on Sunday, Marvel Studios President Kevin Feige stated in a most definite fashion at a 2014 San Diego Comic Con group interview that Josh Brolin's Mad Titan Thanos will not be partaking in "Avengers: Age of Ultron." In fact, with the announcement date of "Guardians of the Galaxy 2" already made apparent, the appearance of Brolin in a Hasbro made Infinity Gauntlet doesn't confirm he's actually in the movie.
Thanos was played by actor Damion Poitier in the first "Avengers" movie during a tease at the end of the film, but now the question remains how the Mad Titan will be making it's way further into the Marvel Cinematic Universe. Feige does comment in a fashion that only the Nihilistic, genocidal maniac would only be able to answer. The Marvel Studios president gives an appearance that the character has taken a life of its own speaking of the sinister being in the third person.
"I think Thanos does what he wants and shows up where he wants to, and I'm not going to tell him otherwise. You don't know exactly."
Also, according to the Zap 2 It, fans will indeed get an idea of Thanos' presence in James Gunn's "Guardians of the Galaxy", but Feige didn't want to put that much focus on him, but rather Ronan the Accuser as he plays an integral part in the formation of the Guardians. It was also mentioned how far behind the man behind the curtain exists.
"The idea for it was to be just another step forward based on what we saw in 'Avengers,'" he says. In "Guardians of the Galaxy, we wanted Ronan to be the bad guy, we wanted to focus on the creation of the Guardians team itself, so we didn't want to spend too much time with Thanos, but we wanted to showcase that there's a guy behind the guy behind the guy."
Feige also made mention how he was able to even "geek out" at a particular shot from the "Guardians of the Galaxy" movie where he's always makes his trademark, comic book cover smirk. He also said that most of the character was motion captured and was elated to have Brolin gladly done the dots on his face to capture the expressions of the Mad Titan himself.
Joss Whedon's "Avengers 2" is scheduled to be released come May 1, 2015, Gunn's "Guardians of the Galaxy" is scheduled to come out this Friday, Aug. 1, and finally the announcement of "Guardians of the Galaxy 2" film release is scheduled for July 28, 2017.