In other news Iron Man 3 nearly made 200 million after the first weekend overseas and it hasn't even started up in the US.
I don't think it'll beat Avengers but i'm confident it will crack the 1 billion mark.
Isn't the time schedule booked solid until Avengers 2? Cap 2, Thor 2, Guardians, Dr. Strange, Ant Man + whatever other hero the deem fit to cram in.. seems pretty full until we see Avengers 2. I haven't seen IM3 yet so i can't comment on the story progression for Stark but Whedon is planning with with him for Avengers 2.
Guess we'll wait and see.