Just in case yesterday's Avengers 2 poster reveal wasn't enough superhero action for you, we've got even more for you today. While it seemed like every superhero was crammed onto the previous poster, everyone is getting some space now with some character posters. Up first? Iron Man.

Robert Downey, Jr. shared the new Iron Man-themed Avengers 2 poster on Facebook along with a mysterious and exciting message:

Got a little somethin for ya, folks. Just cuz you’re awesome, check out this new Iron Man poster for Avengers #AgeOfUltron.
And don’t tell 'em I told you, but there’s a big announcement coming in 8 days… Shhhhhhh… #getexcited

Eight days from now is March 5. We'd normally think this would the date of a new Avengers 2 trailer, but Downey specifically mentions an announcement. A big announcement. We don't have any specifics at this point, but 8 days would be exactly the amount of time to debut a new set of character posters for the rest of the Avengers team: Captain America, Thor, Hulk, Black Widow, Hawkeye, Nick Fury, Quicksilver and Scarlet Witch. That may be a coincidence, but we do know a little something more...

As you may have read, we spent some time on the Avengers 2 set last year. We already brought you some interviews with Joss Whedon, Mark Ruffalo and Robert Downey, Jr. and we'll have even more from that visit next week. What we don't know yet, is exactly what all of this is leading to. Our gut tells us it's something at least partly Avengers 2 related. The last Avengers film closed out the Tribeca Film Festival in April. Could a similar announcement be forthcoming?

Or, if we're aiming bigger, is a major Spider-Man announcement coming? We all know that Spider-Man will be making his first formal appearance in Captain America: Civil War. But will they also announce a Spider-Man cameo in Avengers 2? Has Marvel already cast Spider-Man??

As we ponder what that is, check out the new Iron Man Avengers 2 poster below (which you can click to enlarge) and we'll update with others as they become available.

Avengers 2 opens in theaters on May 1.