Robert Downey Jr's "Big Announcement" Predictions

Earlier today, Robert Downey Jr posted the first character poster for Avengers: Age of Ultron on his Facebook page. The poster was  of a helmetless Iron Man/Tony Stark in an apparently destroyed location with Ultron bots approaching.

What's more than this image, though, is the fact that along with the photo, Robert Downey Jr teased a big announcement coming in 8 days. He did not leave any clue or nugget of insight as to what this announcement will be, but naturally, all of our imaginations are going wild. Here's what we came up with:

1. First look at Vision

2. Tony Stark in Ant-Man

3. X-Men/Fantastic Four Join The Marvel Cinematic Universe

4. Spider-Man Casting Announcement

5. Spider-Man's First MCU Appearance Announcement

6. Iron Man 4

7. Iron Man/Hulk Team-Up Movie

We analyzed each of these possibilities in detail and what the announcement might be in the video below:

What do you think the big announcement will be? Do you think we got it right, or do you think we missed a possibility? Let us know in the comment section!