What is Marvel’s Big Surprise Announcement for Tuesday Morning?

With the Daredevil Netflix series and Avengers: Age of Ultron coming up very soon, Marvel is on a major roll. And yet, Marvel seems to have something else up their sleeve. It seems that there will be another big announcement on Good Morning America on the morning of the 7th.

Robert Downey Jr. tweeted this cryptic message, accompanied by the following picture.

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