Re: So Ms. Marvel and Falcon are definitely in? Oh and what about Ant Man?
I'm pretty sure Chris Evans has confirmed Anthony Mackie's involvement as Falcon in CA2, and Mackie probably has as well. He would certainly add racial diversity to the Avengers lineup, which people could easily accuse them of being too white at the moment. That was the whole reason Henry Gyrich brought Falcon into the Avengers in the first place to put a visible black person on the team (even though they already had Black Panther, but people wouldn't necessarily know he was black since he was masked all the time). It's a shame they don't have Gyrich in the Marvel Universe.
As for Ms Marvel, well we all know that Whedon likes strong women, and she would certainly fit the bill. However Wasp is also a typical Whedon woman, so I would say those two are the most likely.
Anne Hathaway: "You did not just ask me that!! What a forward young man you are!!! My goodness!!"