What surprise character or character's do you think will be in the new Iron man movie?

I'm talking about how Samuel L Jackson was at the end to help tie in the Captain America Movie and the avengers movie how Captain America's shield was seen in the background when pepper pots caught tony taking off the Armor for the First time. I hope they show a little bit of Thor some how in the movie.What surprise character or character's do you think will be in the new Iron man movie?
I think they may hint to Hulk and Cap - I kno that they are making a Cap America movie cuz Chris Evans plays Cap - so they just might set it up - I think Hulk cuz they alredy had Tony Stark appear in the last Hulk movieWhat surprise character or character's do you think will be in the new Iron man movie?
Last I heard it was strictly Iron Man, Backlash (or was it Whiplash?) and the Black Widow...



Then again, we're just going to have to all watch the movie now, huh? :)